Wavelength agile nonmechanical laser beam steering from Fresnel zone plates imprinted on a liquid crystal spatial light modulator

Lindle James R.; Watnik Abbie T.; Cassella Vincent A.

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Wavelength agile nonmechanical laser beam steering from Fresnel zone plates imprinted on a liquid crystal spatial light modulator

机译：Wavelength agile nonmechanical laser beam steering from Fresnel zone plates imprinted on a liquid crystal spatial light modulator

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摘要

Multibeam, multicolor, large-angle beam-steering is demonstrated in the visible spectral region by imprinting Fresnel zone plates (FZP) on a liquid crystal spatial light modulator. Spectral dispersion, both diffractive and refractive, is observed but does not prevent the use of this technology for beam steering applications. The experimental results show that while diffractive dispersion dominates over refractive dispersion, wavelength-specific FZPs can be rendered to direct those beams on target, either simultaneously or consecutively. Only a slight correction in the FZP positon is necessary to compensate for refractive dispersion. The position, intensity, and wavelength of each beam can be controlled independently. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)

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来源
《Optical Engineering》 |2016年第9期|097103-1-097103-8|共8页
作者
Lindle James R.; Watnik Abbie T.; Cassella Vincent A.;
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作者单位

US Navy, Res Lab, Opt Sci Div, Code 5661,4555 Overlook Ave SW, Washington, DC 20375 USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;光学仪器;
关键词
laser beam steering; spatial light modulators; optical phased arrays; liquid crystal devices;

Wavelength agile nonmechanical laser beam steering from Fresnel zone plates imprinted on a liquid crystal spatial light modulator

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