Single-layer planar chirality metal structure circular polarizer
A circular polarizer and metal structure technology, applied in polarizing elements, instruments, optics, etc., can solve the problems of low absorption loss, difficult to achieve, and high transmittance, and achieve the effects of small thickness, easy integration, and reduced difficulty
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[0029] The specific implementation manners of the present invention will be further introduced below in conjunction with the accompanying drawings.
[0030] Previous studies have shown that asymmetric transmission of left-handed and right-handed polarized light can be achieved using planar chiral structures (V.A. Fedotov et al, "Asymmetric Transmission of Light and Enantiomerically Sensitive Plasmon Resonance in Planar Chiral Nanostructures", Nano Letters 7, 1996 (2007)). However, in the planar chiral structures studied in the past, the difference in transmittance between left-handed and right-handed polarized light is within 0.2, and it is impossible to realize circular polarizers. The reason is that the thickness of the planar chiral structures studied in the past is often very thin, no more than one-tenth of the thickness of the working electromagnetic wave. Planar resonance mode, its effect is not enough to effectively discriminate left-handed and right-handed polarized l...
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