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13 March 2024 Fast analog 2π phase modulation using liquid crystal devices
Linpei Xue
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Proceedings Volume PC12907, Emerging Liquid Crystal Technologies XIX; PC129070F (2024) https://doi.org/10.1117/12.3001951
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Spatial light modulators (SLMs) play a key role in modern optics and imaging applications, enabling dynamic control over the phase, amplitude, and polarization of light. For next-generation applications, there is a need for SLMs to exhibit 2 phase modulation within 1 ms at low applied voltages. In this presentation, we investigate the optical phase modulation potential of different nematic liquid crystal (LC) devices including the pi-cell operating in the so-called symmetric H state. Experimental results obtained using a phase-shifting Michelson interferometer confirm full 2 phase modulation in 1 ms, which is in good agreement with results from simulations.
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Linpei Xue "Fast analog 2π phase modulation using liquid crystal devices", Proc. SPIE PC12907, Emerging Liquid Crystal Technologies XIX, PC129070F (13 March 2024); https://doi.org/10.1117/12.3001951
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KEYWORDS
Phase modulation
Analog electronics
LCDs
Liquid crystals
Spatial light modulators
Electro optics
Hassium
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