The bifocal lenses are made from bilayer structures of liquid crystal (LC) cells and LC polymer. These lenses split light with a left-handed circular polarization (LCP) into two focused light ...
However, they can be programmed with a variety of gradient index (GRIN) structures including diffractive and refractive lenses. The polymers self develop in respnse to light, enabling complex 3D GRIN ...
The study, "Color astrophotography with a 100 mm-diameter f/2 polymer flat lens," appears in Applied Physics Letters. This technology could transform astrophotography imaging systems ...
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