Electrically tunable gradient-index lenses via nematic liquid crystals with a method of spatially extended phase distribution.
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DOI: 10.1364/oe.27.032398
Abstract: The dilemma between tunable range of a lens power and an aperture size in gradient-index (GRIN) type of liquid crystal (LC) lenses is well known due to the limitation of birefringence of LC martials and… read more here.
Keywords: electrically tunable; grin lens; liquid; via nematic ... See more keywords