Sub-wavelength plasmon polarization converter

摘要: The utility model provides a sub-wavelength plasmon polarization converter. converter comprises an incident polaroid and emitting polaroid. the are separated by medium or air layer. both made of material. Small holes with sizes carved in two polaroids. Every small hole corresponding form included angle, end points forming angle crossed. When is 90 degrees, only allows coupling access electromagnetic wave one direction, allow direction which orthogonal to above wave. By utilization near field effect among rectangular holes, system can break restrictions Malus law, effective transmission achieved turned degrees. be used as unidirectional transmitter, switch modulator.