scholarly journals Physics Holographic Recording Device Based on LCoS Spatial Light Modulator

2011 ◽  
Vol 48 (5) ◽  
pp. 60-68 ◽  
Author(s):  
A. Bulanovs ◽  
E. Tamanis ◽  
I. Mihailova
Keyword(s):  
Spatial Light Modulator ◽  
Light Wave ◽  
Holographic Recording ◽  
Optical Scheme ◽  
Recording Device ◽  
Coherent Light ◽  
Light Modulator ◽  
Phase Wave ◽  
Diode Pumped ◽  
532 Nm

Physics Holographic Recording Device Based on LCoS Spatial Light ModulatorA PC-controlled holographic recording device has been developed in which a LC-R-2500 Spatial Light Modulator (SLM) based on reflective Liquid Crystal on Silicone (LCoS) display was used. The device allows the amplitude and phase modu-lation of coherent light wave fronts. In the optical scheme, a DPSS (Diode Pumped Solid State) laser with nanosecond pulse duration and wavelength 532 nm was applied. The holographic recording was made and tested in the amplitude and phase wave front modulation modes on a chalcogenide semiconductor photoresist As40S15S45. The experimental results are presented.

scholarly journals Investigations of As-S-Se thin films for use as inorganic photoresist for digital image-matrix holography

Open Physics ◽  
2011 ◽  
Vol 9 (5) ◽  
Author(s):  
Andrejs Bulanovs ◽  
Vjacheslavs Gerbreders ◽  
George Kirilovs ◽  
Janis Teteris
Keyword(s):  
Thin Films ◽  
Digital Image ◽  
Diffraction Grating ◽  
Spatial Light Modulator ◽  
Laser Intensity ◽  
Holographic Recording ◽  
Light Modulator ◽  
Frame Size ◽  
Holographic Gratings ◽  
Relief Phase

AbstractAs-S-Se chalcogenide thin films are successfully employed in classical and dot-matrix holography as inorganic photoresists for obtaining a relief-phase hologram. However using these films for image-matrix hologram recording has not been studied due to some features of image-matrix technology. For the applied research of the optical properties of As-S-Se films an experimental device of digital image-matrix holographic recording based on 100 mW 405 nm semi-conductor laser and Spatial Light Modulator (SLM) has been created. The device has the following main parameters: 140 × 105 µm frame size; laser intensity during exposure 10 W/cm2. With the help of this device diffraction grating and security holograms were recorded on As-S-Se thin films. The work reported herein presents results of an experimental study of how diffraction efficiency (DE) of the received relief-phase holographic gratings depends on an exposure and period. Diffraction grating profiles and speed of etching corresponding to different exposure doses are shown. Hologram samples with DE = 65% have been received which allows for using chalcogenide film as alternative to organic photoresists in applied dot-matrix and image-matrix holography.

Diode-pumped solid state laser with 2D intracavity beam scanning using liquid crystal spatial light modulator

1998 ◽  
Author(s):  
A. F. Kornev ◽  
Arkady P. Onokhov ◽  
Vasiliy P. Pokrovskiy ◽  
Leonid N. Soms ◽  
V. K. Stupnikov
Keyword(s):  
Liquid Crystal ◽  
Solid State ◽  
Spatial Light Modulator ◽  
Solid State Laser ◽  
Light Modulator ◽  
Beam Scanning ◽  
State Laser ◽  
Diode Pumped

A high-end mask writer using a spatial light modulator

2005 ◽  
Author(s):  
Ulric B. Ljungblad ◽  
Per Askebjer ◽  
Tord Karlin ◽  
Tor Sandstrom ◽  
Henrik Sjoeberg
Keyword(s):  
Spatial Light Modulator ◽  
Light Modulator

Generation of vector beams array with a single spatial light modulator

2021 ◽  
pp. 126915
Author(s):  
Lijiao Guo ◽  
Zhiqing Feng ◽  
Yating Fu ◽  
Changjun Min
Keyword(s):  
Spatial Light Modulator ◽  
Light Modulator ◽  
Vector Beams
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