Paper
27 August 2008 Liquid crystal modulated optical amplifier for night vision imaging
Alexander Parfenov, X. Winston Xia, Indra Tengara, Tin Win, Jason Holmstedt, Neven Rakuljic, Tin M. Aye, Mathew W. Swinney, Peter L. Marasco
Author Affiliations +
Abstract
Image intensifier tubes, as part of night vision devices, have been the primary devices for the detection and amplification of near infrared light for night vision operations. In this paper, we demonstrate a novel all-optical night vision amplifier device with a potential to replace the image intensifier tube in night vision goggles. This image amplifier is based on a novel structure of semiconductor and spectrally tunable liquid crystal (LC) materials within a thin cell. The LC reacts to near-infrared (NIR) radiation but is unaffected by visible light, allowing see-through capability including visible-wavelength cockpit light. The technology is made very attractive by its high sensitivity, spatial resolution, and contrast without expensive, bulky, and heavy optics or high-voltage components.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander Parfenov, X. Winston Xia, Indra Tengara, Tin Win, Jason Holmstedt, Neven Rakuljic, Tin M. Aye, Mathew W. Swinney, and Peter L. Marasco "Liquid crystal modulated optical amplifier for night vision imaging", Proc. SPIE 7050, Liquid Crystals XII, 70500U (27 August 2008); https://doi.org/10.1117/12.795345
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KEYWORDS
Night vision

Near infrared

Liquid crystals

Optical amplifiers

Image intensifiers

Visible radiation

Sensors

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