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8 June 1994 Blazed phase liquid crystal beam steering
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Proceedings Volume 2120, Laser Beam Propagation and Control; (1994) https://doi.org/10.1117/12.177691
Event: OE/LASE '94, 1994, Los Angeles, CA, United States
Abstract
In this paper we describe a novel liquid crystal device for rapidly steering laser beams for high-power and large-aperture applications. The device consists of an array of optical phase modulators that contain a thin, active, liquid crystal layer sandwiched between two substrates. The unique aspect of the device is that each phase modulator can produce a linear (blazed) phase gradient, rather than the constant phase profile typical of other liquid crystal beam- steering devices. It is designed for use over a wide range of wavelengths and is particularly well suited for the deflection of short-wavelength laser beam. In this paper, we will describe device design, theoretical performance (diffraction efficiency and time response), and present experimental results of a device built to deflect a 1.064-micrometers laser beam.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roy M. Matic "Blazed phase liquid crystal beam steering", Proc. SPIE 2120, Laser Beam Propagation and Control, (8 June 1994); https://doi.org/10.1117/12.177691
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