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24 October 2000 Fabrication and performance of chiral liquid crystal polymer membranes
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The materials and process technology necessary to fabricate free-standing, circularly-polarizing thin films based on chiral polymer liquid crystalline materials has recently been demonstrated. Free-standing membranes with thicknesses on the order of 10 microns and diameters in excess of 7 cm have been fabricated. The spectrally selective films possess exceptional optical and mechanical properties, exhibiting polarization contrast in excess of 250 with out-of-band transmissions greater than 95%. The theory, materials, processing techniques and spectral performance of these filters are presented.
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Alison M. Thomas, Chrysa M. Theodore, and Patrick J. Hood "Fabrication and performance of chiral liquid crystal polymer membranes", Proc. SPIE 4107, Liquid Crystals IV, (24 October 2000);

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