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Our liquid crystal shutter uses twisted nematic liquid crystals to provide a vibration-free mechanical shutter alternative. The twisted nematic liquid crystal switches between a state that rotates the input polarization by 90° with no voltage applied and a state that makes no change in the input polarization with 8 to 10 volts applied. The applied voltage is a 2 kHz AC square-wave. The shutter is supplied with integral dichroic visible polarizers to provide an average extinction ratio of better than 1,000:1. Custom shutters with larger aperture sizes and with wavelength coverage to 2.1 microns are available on a custom basis.
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San Diego, CA. From SPIE.org: Submit your abstract and join other leading researchers and scientists who are contributing to advancements in optical engineering, nanotechnology, quantum science, and organic photonics. Top companies within the optics industry are making plans to participate in the free exhibition in San Diego in 2022.
