High-speed liquid-crystal-on-silicon spatial light modulators using high-voltage circuitry

1995 ◽  
Vol 20 (3) ◽  
pp. 342 ◽  
Author(s):  
Chongchang Mao ◽  
Douglas J. McKnight ◽  
Kristina M. Johnson
Keyword(s):  
Liquid Crystal ◽  
High Voltage ◽  
High Speed ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Liquid Crystal On Silicon

scholarly journals Diffraction Efficiency Characteristics for MEMS-Based Phase-Only Spatial Light Modulator with Nonlinear Phase Distribution

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 62
Author(s):  
Remington S. Ketchum ◽  
Pierre-Alexandre Blanche
Keyword(s):  
Diffraction Efficiency ◽  
High Speed ◽  
Phase Distribution ◽  
Complex Structure ◽  
Spatial Light Modulators ◽  
Light Modulator ◽  
Micro Electro Mechanical Systems ◽  
Light Modulators ◽  
Nonlinear Phase ◽  
Liquid Crystal On Silicon

Micro-electro mechanical systems (MEMS)-based phase-only spatial light modulators (PLMs) have the potential to overcome the limited speed of liquid crystal on silicon (LCoS) spatial light modulators (SLMs) and operate at speeds faster than 10 kHz. This expands the practicality of PLMs to several applications, including communications, sensing, and high-speed displays. The complex structure and fabrication requirements for large, 2D MEMS arrays with vertical actuation have kept MEMS-based PLMs out of the market in favor of LCoS SLMs. Recently, Texas Instruments has adapted its existing DMD technology for fabricating MEMS-based PLMs. Here, we characterize the diffraction efficiency for one of these PLMs and examine the effect of a nonlinear distribution of addressable phase states across a range of wavelengths and illumination angles.

Ferroelectric liquid crystal with sub-wavelength helix pitch as an electro-optical medium for high-speed phase spatial light modulators

2021 ◽  
Vol 135 ◽  
pp. 106711
Author(s):  
Svetlana P. Kotova ◽  
Evgeny P. Pozhidaev ◽  
Sergey A. Samagin ◽  
Vladimir V. Kesaev ◽  
Vadim A. Barbashov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Spatial Light Modulators ◽  
Ferroelectric Liquid Crystal ◽  
Optical Medium ◽  
Light Modulators ◽  
Helix Pitch ◽  
Sub Wavelength

Multi-phase modulation for nematic liquid crystal on silicon backplane spatial light modulators using pulse-width modulation driving scheme

2004 ◽  
Vol 236 (4-6) ◽  
pp. 313-322 ◽  
Author(s):  
Yongmin Lee ◽  
James Gourlay ◽  
William J. Hossack ◽  
Ian Underwood ◽  
Anthony J. Walton
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Phase Modulation ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Liquid Crystal On Silicon ◽  
Multi Phase

scholarly journals A compensation method for the full phase retardance nonuniformity in phase-only liquid crystal on silicon spatial light modulators

2014 ◽  
Vol 22 (21) ◽  
pp. 26392 ◽  
Author(s):  
Long Teng ◽  
Mike Pivnenko ◽  
Brian Robertson ◽  
Rong Zhang ◽  
Daping Chu
Keyword(s):  
Liquid Crystal ◽  
Compensation Method ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Liquid Crystal On Silicon

scholarly journals UV Durable LCOS for Laser Processing

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1047
Author(s):  
Yasuki Sakurai ◽  
Masashi Nishitateno ◽  
Masahiro Ito ◽  
Kohki Takatoh
Keyword(s):  
Liquid Crystal ◽  
Laser Processing ◽  
Optical Element ◽  
Spatial Light Modulators ◽  
Light Sources ◽  
Laser Material Processing ◽  
Light Modulator ◽  
Light Modulators ◽  
Liquid Crystal On Silicon ◽  
Wavelength Light

Liquid-Crystal-On-Silicon (LCOS) Spatial Light Modulator (SLM) is widely used as a programmable adaptive optical element in many laser processing applications with various wavelength light sources. We report UV durable liquid-crystal-on-silicon spatial light modulators for one-shot laser material processing. Newly developed LCOS consists of UV transparent materials and shows a lifetime 480 times longer than the conventional one in 9.7 W/cm2 illumination at 355 nm. We investigated the durability of polymerization inhibitor mixed liquid crystal in order to extend its lifetime.

Packaging of ferroelectric liquid crystal-on-silicon spatial light modulators

1996 ◽  
Author(s):  
W. Lin ◽  
Nina D. Morozova ◽  
TehHua Ju ◽  
Weidong Zhang ◽  
Yung-Cheng Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulators ◽  
Ferroelectric Liquid Crystal ◽  
Light Modulators ◽  
Liquid Crystal On Silicon

Photoaddressing Of High Speed Liquid Crystal Spatial Light Modulators

1987 ◽  
Author(s):  
Garret Moddel ◽  
Kristina M. Johnson ◽  
Mark A. Handschy
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Spatial Light Modulators ◽  
Light Modulators
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