Workshop of Photonics Product Catalog by UAB Altechna

Laser equipment and applications

Altechna R&D

Konstitucijos ave. 23C LT-08105 Vilnius, Lithuania

tel. +370 5 272 57 38 fax +370 5 272 37 04

info@wophotonics.com www.wophotonics.com

Laser micro machining Medical lasers Laboratory services

Workshop of Photonics® (WOP) originated as a research and development department of Altechna Co. Ltd. Now as a separate company, WOP develops and produces micromachining processes and instruments, laser electronics and micro lasers. Micromachining applications mainly include: sapphire patterning, optical fiber micro structuring, 3D direct laser writing in polymers and solar cell laser processing. State-of-art femtosecond laser technology is used in our laboratory activities and services. We also maintain a broad network of partner laboratories, which allows us to deal with almost any micromachining task providing more convenience for our customers. WOP designs and produces miniature laser electronics as well as laser sources and turnkey laser systems tailored for medical and portable applications. Our specialization in Analytical and Health-Care applications includes: SERS sensors for Raman spectroscopy Scaffolds for tissue engineering Microfluidic devices for sensing Electronics for laser based devices For more information about Workshop of Photonics please visit www.wophotonics.com.

13. M. Malinauskas, P. Danilevicius, D. Baltriukiene, M. Rutkauskas, A. Žukauskas, Ž. Kairyte, G. Bickauskaite, V. Purlys, D. Paipulas,V. Bukelskiene, R. Gadonas “3d Artificial Polymeric Scaffolds For Stem Cell Growth Fabricated By Femtosecond Laser” Lithuanian Journal of Physics, Vol. 50, No. 1, pp. 75–82 (2010) 14. M. Malinauskas, P. Danilevicius, D. Baltriukiene, M. Rutkauskas, A. Žukauskas, Ž. Kairyte, G. Bickauskaite, V. Purlys, D. Paipulas,V. Bukelskiene, R. Gadonas “3d Artificial Polymeric Scaffolds For Stem Cell Growth Fabricated By Femtosecond Laser” Lithuanian Journal of Physics, Vol. 50, No. 1, pp. 75–82 (2010) 15. M. Malinauskas, P. Danilevicius, D. Baltriukiene, M. Rutkauskas, A. Žukauskas, Ž. Kairyte, G. Bickauskaite, V. Purlys, D. Paipulas,V. Bukelskiene, R. Gadonas “3d Artificial Polymeric Scaffolds For Stem Cell Growth Fabricated By Femtosecond Laser” Lithuanian Journal of Physics, Vol. 50, No. 1, pp. 75–82 (2010) 16. M. Malinauskas, P. Danilevicius, D. Baltriukiene, M. Rutkauskas, A. Žukauskas, Ž. Kairyte, G. Bickauskaite, V. Purlys, D. Paipulas,V. Bukelskiene, R. Gadonas “3d Artificial Polymeric Scaffolds For Stem Cell Growth Fabricated By Femtosecond Laser” Lithuanian Journal of Physics, Vol. 50, No. 1, pp. 75–82 (2010) 17. M. Malinauskas, P. Danilevicius1, A.Zukauskas1, G. Bickauskaite,V. Purlys, M. Rutkauskas, T. Gertus, D. Paipulas1, J. Matukaite, A. Kraniauskas, R. Sirmenis, D. Baltriukiene, V. Bukelskiene, R. Gadonas, V. Sirvydis, A. Piskarskas “Laser 3D Micro/ Nanofabrication of Polymers for Tissue Engineering Applications” Latvian Journal Of Physics And Technical Sciences 2011, Nr. 2 18. M. Malinauskas, P. Danilevicius1, A.Zukauskas1, G. Bickauskaite,V. Purlys, M. Rutkauskas, T. Gertus, D. Paipulas1, J. Matukaite, A. Kraniauskas, R. Sirmenis, D. Baltriukiene, V. Bukelskiene, R. Gadonas, V. Sirvydis, A. Piskarskas “Laser 3D Micro/ Nanofabrication of Polymers for Tissue Engineering Applications” Latvian Journal Of Physics And Technical Sciences 2011, Nr. 2 19. M. Malinauskas, P. Danilevicius1, A.Zukauskas1, G. Bickauskaite,V. Purlys, M. Rutkauskas, T. Gertus, D. Paipulas1, J. Matukaite, A. Kraniauskas, R. Sirmenis, D. Baltriukiene, V. Bukelskiene, R. Gadonas, V. Sirvydis, A. Piskarskas “Laser 3D Micro/ Nanofabrication of Polymers for Tissue Engineering Applications” Latvian Journal Of Physics And Technical Sciences 2011, Nr. 2 20. M. Malinauskas, P. Danilevicius1, A.Zukauskas1, G. Bickauskaite,V. Purlys, M. Rutkauskas, T. Gertus, D. Paipulas1, J. Matukaite, A. Kraniauskas, R. Sirmenis, D. Baltriukiene, V. Bukelskiene, R. Gadonas, V. Sirvydis, A. Piskarskas “Laser 3D Micro/ Nanofabrication of Polymers for Tissue Engineering Applications” Latvian Journal Of Physics And Technical Sciences 2011, Nr. 2 21. M. Malinauskas,P. Danilevicius, A. Zukauskas, D. Paipulas, V. Purlys, R. Gadonas, A. Piskarskas D. Baltriukiene, R. Jarasiene, V. Bukelskiene, A. Kraniauskas, R.Sirmenis, V. Sirvydis. “Biocompatibility of polymers and laser-fabricated three-dimensional microstructured polymeric scaffolds for biomedical applications” Submitted for “Engineering in Life Sciences” journal October 11, 2010

Content 1. Products.

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1.1. Laser Machines. 1.2. Laser Sources. . 1.3. Electronics..

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1.4. Laser Software. .

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1.5. Optomechanics. .

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1.6. Special Optics..

2. Services. .

2.1. Micromachining Services..

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2.2. Development Services. .

3. Technologies.

3.1. Two-photon Polymerization.. 3.2. 2PP Applications.

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3.3. Femtosecond Laser Micro Machining. . 3.4. Micromachining Applications. .

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1.1. Laser Machines LASER MACHINES - INTRODUCTION

Services

Products Laser Machines

1. Products

Custom developed systems for various laboratory and industrial laser micromachining tasks. Application of laser machines developed by WOP varies from solar cell production to ceramics scribing and 3D polymerization.

Technologies

Key applications: Solar Cell processing Sapphire dicing and patterning Optical Fiber processing Stent Cutting Ceramic plate scribing Other applications are tested on request. More information at http://www.wophotonics.com/products/

Systems are built in partnership with 4

Elas www.e-lasers.com

FemtoFAB

Features High fabrication speed – up to 300 mm/s Fabrication of difficult objects with submicron resolution Minimal heat affected zone in femtosecond micromachining mode Aerotech based precise object positioning with submicron accuracy Precise laser beam control in space using high-performance galvanometer scanners Pulse number control (single to 1 MHz) Synchronization of laser pulses with moving object in space and time domains Original software interface for control of all integrated hardware devices More information at http://www.wophotonics.com/products/

Services

Products Laser Machines

FemtoFAB is a turnkey femtosecond laser machine for industrial use. Configuration is selected and carefully tuned according to a specific laser micromachining application, including laser cutting, laser scribing, laser drilling and 3D laser milling with any desirable material (with >2,4 GW peak power). System is protected by Class 1 equivalent laser safety enclosure and is controlled through a single SCA engineer software window.

FemtoLAB

Tunable parameters: pulse duration (<200 fs – 10 ps); repetition rate (1 – 1000 kHz); average power (up to 15W); wavelengths (1030, 515, 343, 258 nm).

For purchase contact sales@wophotonics.com

Technologies

Femtosecond laser micromachining system for scientific laboratories. Equipped with nanometer accuracy and resolution linear positioning stages, high performance galvanometer scanners and versatile micromachining software SCA, FemtoLAB becomes an entire laser laboratory on an optical table.

SOLLAS

National innovation prize 2010

Products Laser Machines

An industrial-research laser machine for c-Si solar cells. Equipped with cutting edge duet – femtosecond UV laser and nanosecond IR laser, Sollas is a multi-tasking system, designed for industrialresearch or up to 3 MW/a capacity pilot manufacturing lines.

Services

Features: Optimized for 2.5 MW/a throughput industrial-research line Femtosecond UV and nanosecond IR laser sources Machine vision system detecting rotation and adjusting laser scanning field Precise laser beam control in space using high-performance galvanometer scanners 5″ and 6″ wafer processing Intuitive touch-screen user interface for simple production mode operation (SCA engineer) Full functionality software access in research mode (SCA engineer) Sollas performs 4 technological processes: Selective SiNx/SiO2 removal Back contact laser firing Edge isolation Laser marking Other processes are integrated after feasibility tests

WOP-PV-F

Technologies

An optical unit dedicated for fiber laser processing of c-Si solar cells. Small footprint allows easy installation in new or existing PV manufacturing facilities. Integrated high-performance galvanometer scanners are able to process both – 5″ and 6″ wafers. Customized release of SCA engineer performs wafer edge detection, controls XYZ beam positioning, laser parameters, and provides micro monitor function in a single software window. Advantages: Reliable operation Non-contact processing Small footprint and compact size Convenient automation software Simple integration in in-line manufacturing facilities Fast machine vision 6

For purchase contact sales@wophotonics.com

nSCULPTOR Products Laser Machines

nSCULPTOR is a turnkey 3D laser lithography system for fabrication of nano structures. Operation of the system is based on multi photon polymerization (mPP) technique and works with many conventional photoresists available in the market. nSCULPTOR enables prototyping and production of various threedimensional structures at nanometer accuracy and resolution. All processes of fabrication are integrated into a single system 3D model creation and preparation Direct laser writing Post-processing

Services

Advantages: All-in-one solution 100 nm – 10 μm resolution Complex 3D objects Variety of polymers Small footprint

WOP-XS

Advantages: Reliable operation with any selected laser source Non-contact processing Very small footprint and compact size Convenient automation software Cost effective solution Convenient sample tilting Vacuum chuck and dust removal options Machine vision option

For purchase contact sales@wophotonics.com

Technologies

A cost effective optical unit dedicated for wafer processing in laboratory environment. Very small footprint allows easy installation in existing laboratory facilities, by attaching it to an optical table. Integrated high-performance galvanometer scanners are able to process both – 5″ and 6″ wafers. Customized release of SCA student controls XY or XYZ beam scanning and laser parameters.

1.2. Laser Sources LASER SOURCES - INTRODUCTION

Services

Products Laser Sources

1. Products

We design and manufacture Micro DPSS and OPSL lasers as well as turnkey laser diode systems for analytical and medical applications.

Technologies

Key applications: Blood vessel treatment Vein removal Dental Laser treatment Pump source for harmonic generators, and amplifiers Laser induced Fluorescence Laser Induced Breakdown Spectroscopy (LIBS) Test and measurement systems Environmental sensing, bio detection Custom development of lasers based on DPSS or OPS technologies is available on request. More information at http://www.wophotonics.com/products/

DPSS Micro Laser AltLAS Products Laser Sources

Yb:YAG micro laser combines high repetition rate and powerful pulses with good beam quality and high output power. Due to unique characteristics of Yb:YAG laser crystal we can propose very wide range of different parameters on request. Features: Excellent beam quality High repetition rate High pulse energy High output powerSmall footprint High level of frequency control – from single pulse to 10kHz*

Wavelength, nm

1030

515

1030

Output power, mW

200

250

1000

Pulse energy, μJ

<1.3

<1.5

<1.3

0.001- 5*

0.001 – 10*

0.001 – 5*

Beam Quality M2

<1.2

<1.4

<1.2

Polarization ratio

>30:1

>50:1

>30:1

+/-5

Rms 1.25 %, PTP 2.6 %

Rms 0.75 %, PTP 1.6 %

15 – 30

One year

Pulse duration, ns Repetition rate, kHz

P2P energy stability, % Maximal timing jitter, μs Output power stability Operating temperature, °C Warranty

For purchase contact sales@wophotonics.com

Services

AltLAS – C5 AltLAS – C10 AltLAS – G5 AltLAS – CW

Technologies

Model

Products Laser Sources Services Technologies 10

For purchase contact sales@wophotonics.com

1. Products

Services

ELECTRONICS - INTRODUCTION

Products Electronics

1.3. Electronics

We provide laser control electronics for medical laser systems and low to mid range average power laser sources. Multifunctional and compact devices are easily integrated and conveniently controlled through USB, LCD and touch-screen interfaces.

Custom development of electronics for laser control or optomechanics control is available on request. More information at http://www.wophotonics.com/products/

Technologies

Low cost stepper motor controller is also available in this category.

Only LDD Products Electronics

All-in-one solution for direct laser diode applications.Incorporates laser diode driver, aiming beam driver, temperature controller (fan/water pump control) as well as LCD and USB control interfaces. Microcontroller based cost effective CW/QCW laser diode driver for single-emitter laser diodes. Short current pulse rise/fall time durations in QCW mode.

Specifications

Technologies

Services

Parameter Max. laser diode current (CW) Max. laser diode current (QCW) Current setpoint resolution Max. output voltage Aiming beam current Aiming beam voltage FAN (water pump) output voltage Temperature stability Temperature setpoint resolution Repetition rate in QCW operation Pulse width Pulse switch durations (10Amps pulses) Input DC voltage (+VCC) Total output power Dimensions (controller, LxWxH) Dimensions (power supply)

Value 12 A 15 A 0.01 A 6V 250 mA 6V same as +VCC 0.5 C 0.1 C 20 Hz - 500 kHz 1 μs – 5 ms >1000 ns +7.5 V up to 90 W 136x118x44 mm 168 x 70 x 40 mm

Only LDD laser diode driver is perfectly suited for direct laser diode applications: medical laser stations material processing high energy but low average power DPSS lasers The most straightforward application is medical laser for dental treatment – that’s what for the laser diode driver was designed as all-in-one solution. 12

For purchase contact sales@wophotonics.com

Features: QCW and CW operation modes Plug-and-play configuration Integrated quartz based pulse generator Fan/water pump controller Standard mini USB 2.0 interface for remote control Low current aiming beam driver Interlock channel on D-SUB37 for connection of key e. stop or power on switch Gate function for pulse trains generation or control of laser diode from external pulse generator Two NTC inputs; the second input can be programmed to support external control pedal (for medical applications) Two lines text LCD screen 2 year full service warranty

Services

The OEM version of the Only LDD laser diode driver. Due to better heat management capabilities, higher power is available in the OEM version.

Products Electronics

Only OEM

Parameter Max. laser diode current (CW) Max. laser diode current (QCW) Current setpoint resolution Max. output voltage Aiming beam current Aiming beam voltage FAN (water pump) output voltage Temperature stability Temperature setpoint resolution Repetition rate in QCW operation Pulse width Pulse switch durations (10Amps pulses) Input DC voltage (+VCC) Total output power Size (LxWxH) with aluminum pad * higher voltages available on request.

Value up to 15 A up to 30 A 0.01 A 6 V* 250 mA 6V same as +VCC 0.01 C 0.1 C 20 Hz - 500 kHz 1 Îźs â&#x20AC;&#x201C; 5 ms >1000 ns +7.5 V* up to 144 W 125x110x30 mm

For purchase contact sales@wophotonics.com

Technologies

Specifications

Products Electronics

Tiny LDD

Cost-effective solution designed for safe and reliable operation of single-emitter laser diodes and low power DPSS lasers. It incorporates laser diode driver and 2 TEC controllers as well as on-board user interface with 2-row LCD display and control buttons.

Services

Features Easy controlled Soft start function User selectable: 2 uni-directional TEC controllers or single bi-directional TEC controller 2 single-directional TEC controllers Smooth temperature stabilization. Adjustable parameters to avoid temperature oscillations Overheating protection for laser diode Can be used in multistage laser systems. Master LDD can start/stop slave LDDâ&#x20AC;&#x2122;s (from 1.4 ver.) Compact size LD current modulation (optional) Microprocessor controlled USB 2.0 compatible Specifications

Technologies

Parameter Laser diode current source current range Laser diode current increment/decrement step Laser diode voltage limit range Laser diode voltage limit increment/decrement step NTC (termoresistor) value @25degC TEC driver current (each channel) External power supply voltage Dimensions (controller without pads) Dimensions (power supply) External TTL trigger signal 14

Value 0.4 to 10 A 0.004 A 1.5 to 3 V 0.001 V 10 kOhm up to 4 A 100-240 V AC to +5 V DC 130 x 55 x 30 mm 119 x 60 x 37 mm 0-5 V

For purchase contact sales@wophotonics.com

Products Electronics

Tiny OEM

Services

The OEM version of the Tiny LDD laser diode driver. Small size and feature dense unit easily fits compact laser enclosures.

Parameter Laser diode current source current range Laser diode current increment/decrement step Laser diode voltage limit range Laser diode voltage limit increment/decrement step NTC (thermoresistor) value @25degC TEC driver current (each channel) External power supply voltage Dimensions External TTL trigger signal

Value 0.4 to 10 A 0.004 A 1.5 to 3 V 0.001 V 10 kOhm up to 4 A 100-240 V AC to +5 V DC 130 x 55 x 30 mm 0-5 V

For purchase contact sales@wophotonics.com

Technologies

Specifications

Step Motor Controller Products Electronics

Features: Microprocessor control USB control interface TTL STEP/DIR control interface User friendly PC control software Compact size Unbeatable price

Specifications:

Services

Virtual serial port (“COM port”) settings then attached to USB: Baud rate 38400 8 data bits 1 stop bit Parity: none Flow control: none Controller input (“STEP/DIR INTERFACE” connector): Input pins UartRx UartTx Step/Dir/En

Technologies

ModeSel UartOn

Description UART baud rate 38400, 8 data bits, 1 stop bit, no parity. RXD and TXD pins are 5V compatible with reference to GND pin. Maximal input voltage +5.5 V These pins are optically isolated, 3.3 V – 5 V compatible. Input current requirement per pin: 4.6 mA @ 2.8V 5.2 mA @ 3.3V 6.8 mA @ 5 V These logic pins are not optically isolated. 5V compatible with reference to GND. Maximal input voltage +5.5 V

Motor output: Characteristic Max output voltage Max output current Current regulation type Microstepping capability Step frequency 16

Rating 12 V 2A Pulse Width Modulation Full, Half, Quarter, Eighth, Sixteenth steps Up to 4 kHz

For purchase contact sales@wophotonics.com

1.4. Laser Software LASER SOFTWARE - INTRODUCTION

Products Laser Software

1. Products

Workshop of Photonics® develops SCA software packages for laser micromachining. SCA is a universal and flexible tool for controlling and automation of laser, translation stages, galvanometer scanners, piezo positioners and other devices used in laser micromachining systems.

SCA professor™ is the most flexible, fully functional edition, dedicated to technically and ideologically unlimited 3D micromachining experiments.

Services

With its abundance of useful features, SCA makes micromachining tasks easily describable, controllable and repeatable.

SCA engineer™ is dedicated to industry and industrial research laser micromachining systems. Implying task optimized machine vision algorithms, production operation mode, control of production line peripherals, etc. SCA Engineer is suitable for automated control of high-end laser micromachining instruments.

For purchase contact sales@wophotonics.com

Technologies

SCA student™ is a cost effective software solution for relatively simple micromachining tasks. It controls either three-axis motion system or two axis galvanometer scanners.

Products Laser Software

Main features of SCA professor: Directly controls Aerotech positioning equipment (no need of G-code) Controls up to 5 axis positioning system, including linear, galvanometer or rotary Incorporates convenient algorithms and mathematical commands Synchronizes laser operation with positioning stages and galvo-scanners Integrated micro monitoring function 3D fabrication trajectory preview window Integrated process control Position synchronized output (PSO) operation Direct laser parameter control Motorized attenuator control Virtual joystick Supported file formats: *.dxf – for 3D and 2D object fabrication,

Services

*.plt (.hpgl, .hpg) – standard plotter format for fabrication of 2D objects; features fabrication trajectory optimization, hatching function with varying line density and angle,

Technologies

*.stl – file format standard used in 3D lithography; features horizontal and angled slicing, shell formation according to surface of an object, shells (or layers) can vary in numbers, distance between shells. User can define number of inside and outside shells to be modeled and distance between shells. This allows increasing wall thickness of a fabricated 3D object. *.bmp – common raster graphics file format, featuring gray scale fabrication based on pulse density, relief fabrication based on bitmap intensity levels, polarization change based on bitmap intensity levels. 18

.stl file is formed of triangles.

.stl file sliced by SCA professor

Sliced object, having 3 shells to thicken the wall

For purchase contact sales@wophotonics.com

Products Laser Software Services

Recommended system requirements: WinXP/Win 7 operating system Equivalent to ATI Radeon HD 2000 series, NVIDIA GeForce 210 (or better) Double core 2 GHz CPU (or better) 2 GB of RAM (or better) Applications: 3D direct laser writing laser cutting laser etching laser marking laser dicing

Technologies

More information at http://www.wophotonics.com/products/

For purchase contact sales@wophotonics.com

Products Optomechanics

1. Products 1.5. Optomechanics

Services

WATT PILOT

The third edition of motorized variable attenuators developed by WOP. Controlled through USB as stand-alone or fully integrable with SCA laser automation software, Watt Pilot continuously variable motorized attenuator is readily used in automated laser systems.

Technologies

Features User friendly and flexible control software Easy to integrate USB/Step-dir control interfaces 44 steps/degree resolution Rugged and compact aluminum body

For purchase contact sales@wophotonics.com

15mm Standard (up to 50mm are available)

Operational wavelength Configuration range

Optimization

Attenuation range@CWL

+/-2nm

λ/2 LowOrder Waveplate + cemented Polarizing cube

+/-10nm

λ/2 ZeroOrder Wave0,5-95% for plate + cemented Transmission/ transmitted Polarizing cube Reflection mode p-pol beam λ/2 ZeroOrder Waveplate + optically contacted Polarizing cube

+/-5nm

15mm Enhanced (up to 50mm +/-20nm are available)

+/-5nm

+/-25nm

λ/2 ZeroOrder Waveplate + 2x Brewster type thin film polarizers

λ/2 Achromatic Waveplate + 2x Broadband (ultraFAST) thin film polarizers

>0,3J/cm2

CW medium power lasers and LDs

>5J/cm2

0,3-99% for Reflection mode reflected s-pol beam

Transmission mode

0,3-95% for transmitted p-pol beam

Transmission mode

1-85% for transmitted p-pol beam

Transmission λ/2 ZeroOrder Wave- Contrast mode plate + 2x Broadband (ultraFAST) thin film polarizers Reflection mode

15mm UltraFAST (up to 50mm are available)

+/-50nm

>0,3J/cm2

λ/2 ZeroOrder Waveplate + 2x 0,5-98% for Broadband Brewster Reflection mode reflected s-pol type thin film polarbeam izers λ/2 ZeroOrder Waveplate + 1x Brewster type thin film polarizer

Damage threshold, Typical @10ns, application 1064nm, 10Hz

>5J/cm2; >100mJ/ cm2@100fs, 800nm

High power CW and pulsed lasers, LDs

Services

Clear aperture

0,2-70% for transmitted p-pol beam 4-96% for reflected s-pol beam

Reflection Contrast mode

0,1-70% for reflected s-pol beam

Transmission mode

1-85% for transmitted p-pol beam

Transmission Contrast mode

0,2-70% for transmitted p-pol beam

>5J/cm2; >100mJ/ cm2@100fs, 800nm

Ultrashort powerful lasers; broadband laser sources

Technologies

Model

Products Optomechanics

Specification

4-96% for Reflection mode reflected s-pol beam Reflection Contrast mode

0,1-70% for reflected s-pol beam

For purchase contact sales@wophotonics.com

Products Optomechanics

Universal Sample Holder

Designed in WOP laboratories for holding wide variety of samples during micromachining. It proved to be very versatile and convenient in operation.

Technologies

Services

Features 5 vacuum chucking places robust steel or stainless steel construction place for bottom lighting place for fiber fastening tilt adjustment

For purchase contact sales@wophotonics.com

Radial Polarization Converter (Z-polarizer) Radial (azimuthal) or Z polarization enables focusing of a laser beam to a smaller spot size and achieving the same machining properties in all directions. This special configuration lambda plate can either convert Linear polarization to radial or azimuthal; or it can create an optical vortex of higher level (up to 4th and 5th) topological charge. Features Converts Linear polarization to radial or azimuthal Creates optical vortex High damage threshold Nearly 100% conversion efficiency 50-60% transmission efficiency Large aperture possible (up to 10 mm or bigger; standard is 4 mm) Anti-reflection coatings applicable

Services

1.6. Special Optics

Products Special Optics

1. Products

Product RPC-515-02 RPC-515-04 RPC-515-06 RPC-1030-02 RPC-1030-04 RPC-1030-06 RPC-1550-02 RPC-1550-04 RPC-1550-06

Operation Transmission Clear wavelength, nm Aperture, mm 515 ±50 >50% 2 515 ±50 >50% 4 515 ±50 >50% 6 1030 ±50 >75% 2 1030 ±50 >75% 4 1030 ±50 >75% 6 1550 ±50 >85% 2 1550 ±50 >85% 4 1550 ±50 >85% 6 For purchase contact sales@wophotonics.com

Standard models. Custom configurations available on request.

Technologies

Benefits for laser micromachining Helps achieving smaller spot size Ensures the same machining properties in all directions* *When processing materials with linearly polarized light, features are bigger in width, when machining is performed in the direction perpendicular to displacement of the beam and vice versa.

2. Services Products

2.1. Micromachining Services

Services Micromachining Services

MICROMACHINING SERVICES - INTRODUCTION

We employ in-house and external laboratory resources and can provide virtually any micromachining service. Our experience in multiple applications guarantees best lead times and results.

Technologies

More information at http://www.wophotonics.com/services/

Need to fabricate micron scale structures on the surface or in the bulk? Already tried and disappointed with other technologies? Our laboratories equipped with ultra-short pulse lasers (from below 300 femtoseconds) is a place where machining perfection can be achieved.

Products

Feasibility Studies On Laser Micromachining

Our researchers will test your materials to achieve desired fabrication mode and consult on implementation of it in mass production. Our working experience covers great variety of materials and our original micromachining software SCA allows achieving the desired results fast.

Initial laser micromachining test is performed by WOP researchers. After that they provide basic information on machining speed achieved and expectable or non-expectable feasibility of the process as well as the further development plan.

Micromachining Process Development Most of laser micromachining applications are not as straightforward as for example marking. Some processes need development which takes weeks and even months. Not only different laser parameters have to be tested but also various beam shaping and focussing solutions. A typical approach for comprehensive process development contains following steps: testing of different wavelengths in order to explore light-material interaction testing of different focussing optics selecting and testing most suitable positioning solution determining, whatâ&#x20AC;&#x2122;s required for repeatability optimising software functionality for convenient process control

Technologies

After receipt of enquiry, we analyze and provide initial statement free-of-charge. After filling in the application request form, a fee-based testing schedule is planned.

Services Micromachining Services

Laser testing procedure

You are welcome to contact us with specific micromachining tasks. We are committed to develop a micromachining process for you, transfer or license associated knowhow and intermediate in development/selection and production of a dedicated laser machine. For purchase contact sales@wophotonics.com

Small Scale Production (Job-Shop)

Services Micromachining Services

Products

Since micromachining workstations incorporating ultra-short pulse lasers are rather expensive, it is not always worth buying one. Especially if you need to machine a small batch of articles, consider using our job shop services.

Laser Laboratory Rent Accompanied by researchers from WOP or totally confidentially, researchers from academic institutions or industrial laboratories might rent one of our laboratories. With rates starting from 600 EUR/day renting is a good substitute for owning the pricy equipment and clean-room premises.

Technologies

More information at http://www.wophotonics.com/services/

For purchase contact sales@wophotonics.com

2. Services

Our engineers of all major fields (electronics, mechanics, optics, software, micromachining process) are ready to take development orders for designing laser systems, medical lasers and electronics as well as developing micromachining processes for industrial applications.

Services Development Services

DEVELOPMENT SERVICES - INTRODUCTION

Products

2.2. Development Services

Technologies

More information at http://www.wophotonics.com/services/

Laser Development

Products

Development of DPSS micro lasers. Required beam parameters are achievable within low- to mid-range average power and nano- to pico-second durations.

Services Development Services

Laser Workstation Design Decided to build a laser workstation by your own? Or just want to integrate acquired components (lasers, positioning stages, scanners) into a single device? Please contact us for consultations. WOP also does sub-contract laser and workstations development. Our engineers will prepare drawings for CNC machining, wiring, also will prepare instructions for assembling, tuning and testing.

Laser Electronics Development Technologies

Design and development of microprocessor based laser electronics is one of the core competences at WOP. Apart from currently manufactured laser diode drivers and TEC controllers, we provide services related to customization of existing products or development of completely new laser electronics solutions for industrial and medical diode laser and DPSS laser applications. At laser electronics we impose: expertise on design of microcontroller based systems wide selection of user interfaces good component sourcing good technical base for testing of electronics production management skills 28

For purchase contact sales@wophotonics.com

3. Technologies Products

3.1. Two-photon Polymerization

How does 2PP work?

Features: 100 nm – 10 µm writing resolution Medium cost per sample Variety of polymers Complex 3D objects a)

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Two-photon Polymerization is a unique technology for 3D structuring of micron scale objects with nanometer precision. Femtosecond laser beam is focused inside a drop of sol-gel or other types of photoresist polymer and desired pattern is “written” precisely point–by-point (Fig. 1 a and b). Then, the unsolidified remainder of the photoresist is washed away leaving only the fabricated microstructures on the substrate (Fig.1 c).

2PP technological platform can offer a flexible solution for micro prototyping and production. It is a combination of feasibility studies, small-scale production and development of turn-key work stations. This platform includes certain steps from selecting the most suitable photoresist to building task-dedicated laser system for science or industry.

Technologies Two-photon Polymerization

What is a “technological platform”?

Laser system software “SCA”

Products

The SCA laser automation software product family is distinguished among other existing laser software solutions by the key working principle – it controls positioning stages by directly addressing the command libraries of the positioning stages software (no machine code conversion). Structures of any geometry can be fabricated directly from CAD file. There are no limitations for object shape or direct writing geometry, except those limited by obvious laws of physics. *2

Services

20 μm

Photoresist Polymer Materials Variety of photoresist materials with required features can be chosen; No structural distortions; Certain wavelength absorption; Refractive index matching.

Technologies Two-photon Polymerization

Precision and Controllable Self-Polymerization

Standard direct writing is able to make repeatable structures as small as 100nm, though by employing self-polymerization effect, the smallest lines can be around 20 nm. This effect occurs when certain distance between polymerized structure walls is kept, so self-polymerizing structures can be controlled, at least to some extent. *3

< 90 nm

Reliable and multifunctional software ‘SCA Professor’ensures fast preparation, stable workflow. 3D lithography is related to huge amounts of data, which has to be transmitted between computer and positioning controllers. Many systems crash because of poor software adaptation to these specific tasks. ‘SCA professor’ splits the data in portions to deliver them safely and timely to the controllers. Moreover, identical structures can be fabricated by direct laser writing process but in order to save time and work for large area patterning stamping technique can be used.

Products

Repeatability

Periodic structures

5 μm

Main Applications: Microoptics Photonic crystals Regenerative medicine

10 μm

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Technologies Two-photon Polymerization

More information at http://www.wophotonics.com/applications/

3. Technologies Products

3.2. 2PP Applications Application in Micro Optics Many polymers are transparent to visible light and can be combined with other materials like Zn or Ge. The ability to control light flow can be used in micro optical devices, such as micro lenses, hybrid micro lenses with a phase gratings, micro lens arrays, vortex beam screw generators, vortex generator arrays or other. The 2PP technology allows fixing of such micro optical devices on limited surfaces like the tip of an optical fiber. *6

Services

20 μm

Scan direction

20 μm

*10

1 μm

50 μm

Technologies 2PP Applications

Application in Photonics Highly repeatable and stable technological process aims at fabrication of detractive gratings and photonic crystals. *11

10 μm

*12

5 μm

Regenerative medicine is the most promising application field for 2PP technology, because polymerization can offer variety of custom elements which need controllable precision, biocompatibility or biodegradability. Polymeric scaffolds for stem cells growth can be fabricated in any 3D shape for application in tissue engineering.

Products

Application in Regenerative Medicine

Scaffolds for tissue engineering.The last picture shows that artificial scaffold ambient is suitable for cell proliferation, because there is a cell growing in mitosis stage. *13

*15

*14 1.32 μm

10 μm

15 μm

20 μm

*16

Services

6.44 μm

20 μm

*18

*17

27 μm 3.5 μm

36 μm

100 μm

27 μm

*20

*19

Technologies 2PP Applications

3.2 μm

mitosis 30 μm

More information at http://www.wophotonics.com/applications/

5 μm

Products

Biocompatibility and biodegradability have been tested in vivo and in vitro. Histological tests show that sol-gel material is more biocompatible that a surgical suture or surgical clip. *21

suture

SZ2080

300 Îźm

Technologies 2PP Applications

Services

If you are interested in Two-Photon Polymerization technological platform do not hesitate to contact us, we would gladly answer to your questions and give you the best solution according to your specific requirements.

3. Technologies

Workshop of Photonics is developing microfabrication technological platform, in order to provide scientific and industrial customers with: Feasibility studies Fabrication process development Small scale production Micromachining system development or mass production. Laboratory rent and demo Our competences, accumulated know-how and well equipped laboratories are capable to perform these processes: Precise drilling, cutting, dicing and making Ablation, etching, 2.5 D milling 3D in bulk engraving Surface micro-nano structuring Laser-Induced Backside Wet Etching (LIBWE) Refractive index modification in transparent materials Optical micro-manipulation Two-photon polymerization More information at http://www.wophotonics.com/applications/

Technologies Femtosecond Laser Micro Machining

Femtosecond laser micro fabrication is currently the most precise technological platform among other laser technologies, which is used for material processing. First of all, femtosecond laser pulses distinguish itself as causing minimal heat effect, therefore almost any solid state material can be fabricated with submicron resolution.

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Products

3.3. Femtosecond Laser Micro Machining

3. Technologies Products

3.4. Micromachining Applications SiNx ablation from crystalline solar cells Ablation of approx. 90 nm layer Perfect selectivity with 343 nm pulses No melting and HAZ Applications: Front contact formation Back contact formation

Services

Ablated fingers and buss bars on a solar cell Controlled pulse density Optimal pulse overlapping No melting and HAZ Applications: Front contact formation Back contact formation

Technologies Micromachining Applications

Fingers deposited by nickel Selective deposition on ablated areas Electro-less plating method is applicable Good conductivity

Applications: Front contact formation Back contact formation Optical fiber drilling Good inner wall flatness Various hole profiles possible All types of fibers can be processed Applications: Optical fiber sensors Material science

10 Îźm

Products

Optical fiber drilled to the middle Diameter from <10 μm Various hole profiles possible Depth and angle control Applications: Optical fiber sensors Material science

Services

Optical fiber lensed using 2PP technique Matching refractive index Shape flexibility Resolution from 100 nm to 20 μm Applications: Medical fibers Fiber collimators

100 μm

Applications: Medical fibers Oncology Diamond cutting Low carbonization No HAZ Low material loss Applications: Diamond sheet cutting Diamond texturing/patterning

More information at http://www.wophotonics.com/applications/

100 μm

Technologies Micromachining Applications

Optical fiber scattering No impact on fiber strength No surface damage Even light dispersion

Products

Steel foil μ-drilling No melting Micron diameter Applications: Filters Functional surfaces

10 μm

Chrome ablation from glass substrate Selective ablation Resolution from 1 μm

Services

Applications: Lithography mask production Beam shaping elements

Chrome ablation for beam shaping Selective ablation Submicron resolution

Technologies Micromachining Applications

Applications: Vortex beam generation

Sapphire bulk marking Colorful structures due to small pixel size Very small cracks Low influence on strength of the substrate Applications: Anti counterfeiting Colorful logos on watches and other luxury products

50 μm

Products

Glass marking No crack formation Intra-volume and surface marking Applications: Solar panels Medical equipment marking Many other

Ferroelectric ceramics etching No or low melting Easily removable debris Good structuring quality Applications: Infrared sensors for cameras Memory chips

Services

20 μm

Sapphire patterning Micron resolution Large area processing Applications: LED production Semiconductor structure growth

Silicon laser assisted etching No HAZ No melting Applications: Solar cell production Semiconductor industry

30 μm

More information at http://www.wophotonics.com/applications/

Technologies Micromachining Applications

30 μm

Products

Steel marking/patterning Small spots form colorful diffractive picture No heat effect Applications: Product marking Surface hardening Functional surfaces Hair marking

Services

Capabilities demonstration

Glass tube drilling Controlled damage and depth

20 Îźm

Applications: tissue biopsy equipment

Technologies Micromachining Applications

15 Îźm

Amplitudegrating formation Example: with bifunction m=25 for light Applications: vortex generation

Products

Hologram production Example: hologram view generated using glass sample

Aperture array fabrication selective removal of chrome layer from glass substrate

Applications: microfluidic sensors waveguides

3 μm

25 μm

“Workshop of photonics” logo fabricated inside an optical fiber Capabilities demonstration 100 μm

More information at http://www.wophotonics.com/applications/

Technologies Micromachining Applications

Micro channel formation wide range of materials – from glass to polymers

Services

Applications: optical apertures

* Illustrations source 1. Mangirdas Malinauskas, Arune Gaidukeviciute, Vytautas Purlys, Albertas Zukauskas “Direct laser writing of microoptical structures using a Ge-containing hybrid material” Metamaterials 5 (2011) 135–140 2. MangirdasMalinauskas, Holger Gilbergs, Albertas Zukauskas, Vytautas Purlys, Domas Paipulas, Roaldas Gadonas, “A femtosecond laser-induced two-photonphotopolymerization technique for structuring microlenses” J. Opt. 12 (2010) 035204 (8pp) 3. Mangirdas Malinauskas, Arune Gaidukeviciute, Vytautas Purlys, Albertas Zukauskas “Direct laser writing of microoptical structures using a Ge-containing hybrid material” Metamaterials 5 (2011) 135–140 4. M. Malinauskas, V. Purlys, M. Rutkauskas, A. Gaidukeviciute, R. Gadonas “Femtosecond Visible Light Induced Two-Photon Photopolymerization For 3d Micro/Nanostructuring In Photoresists And Photopolymers” Lithuanian Journal of Physics, Vol. 50, No. 2, pp. 201–207 (2010) 5. M. Malinauskas, V. Purlys, M. Rutkauskas, A. Gaidukeviciute, R. Gadonas “Femtosecond Visible Light Induced Two-Photon Photopolymerization For 3d Micro/Nanostructuring In Photoresists And Photopolymers” Lithuanian Journal of Physics, Vol. 50, No. 2, pp. 201–207 (2010) 6. Mangirdas Malinauskas, Albertas Zukauskas, Vytautas Purlys, Kastytis Belazaras, Andrej Momot, Domas Paipulas, Roaldas Gadonas, Algis Piskarskas, “Femtosecond laser polymerization of hybrid/integrated micro-optical elements and their characterization” J. 2010 J. Opt. 12 124010 7. Mangirdas Malinauskas, Albertas Zukauskas, Vytautas Purlys, Kastytis Belazaras, Andrej Momot, Domas Paipulas, Roaldas Gadonas, Algis Piskarskas, “Femtosecond laser polymerization of hybrid/integrated micro-optical elements and their characterization” J. 2010 J. Opt. 12 124010 8. Etienne Brasselet, Mangirdas Malinauskas, Albertas Zukauskas,Saulius Juodkazis Photo-polymerized microscopic vortex beam generators : precise delivery of optical orbital angular momentum Appl. Phys. Lett. 97, 211108 (2010); doi:10.1063/1.3517519 9. Etienne Brasselet, Mangirdas Malinauskas, Albertas Zukauskas,Saulius Juodkazis Photo-polymerized microscopic vortex beam generators : precise delivery of optical orbital angular momentum Appl. Phys. Lett. 97, 211108 (2010); doi:10.1063/1.3517519 10. Etienne Brasselet, Mangirdas Malinauskas, Albertas Zukauskas,Saulius Juodkazis Photo-polymerized microscopic vortex beam generators : precise delivery of optical orbital angular momentum Appl. Phys. Lett. 97, 211108 (2010); doi:10.1063/1.3517519 11. Mangirdas Malinauskas, Holger Gilbergs, Vytautas Purlys, Albertas Žukauskas, Marius Rutkauskas and Roaldas Gadonas, “Femtosecond laser-induced two-photon photopolymerization for structuring of micro-optical and photonic devices” Proc. of SPIE Vol. 7366 736622-1 (2009) 12. Mangirdas Malinauskas, Holger Gilbergs, Vytautas Purlys, Albertas Žukauskas, Marius Rutkauskas and Roaldas Gadonas, “Femtosecond laser-induced two-photon photopolymerization for structuring of micro-optical and photonic devices” Proc. of SPIE Vol. 7366 736622-1 (2009) 42

Laser equipment and applications

Altechna R&D

Konstitucijos ave. 23C LT-08105 Vilnius, Lithuania

tel. +370 5 272 57 38 fax +370 5 272 37 04

info@wophotonics.com www.wophotonics.com

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