Journal
OPTICS EXPRESS
Volume 24, Issue 7, Pages 7091-7102Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.007091
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Funding
- US Army Natick Soldier Research, Development and Engineering Center
- NASA Innovative Advanced Concepts (NIAC) program office
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We report on lenses that operate over the visible wavelength band from 450 nm to beyond 700 nm, and other lenses that operate over a wide region in the near-infrared from 650 nm to beyond 1000 nm. Lenses were recorded in liquid crystal polymer layers only a few micrometers thick, using laser-based photoalignment and UV photopolymerization. Waveplate lenses allowed focusing and defocusing laser beams depending on the sign of the circularity of laser beam polarization. Diffraction efficiency of recorded waveplate lenses was up to 90% and contrast ratio was up to 500: 1. (C) 2016 Optical Society of America
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