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▲ [13p-P6-6] Unidirectional Resonant Absorption in a Lossy Superconducting Photonic Crystal
Keywords:unidirectional absorption, photonic crystal, superconductor
This work is aimed to theoretically study unidriectional resonant absorption in a defective and lossy superconducting photonic crystal (SPC). The considered finite SPC is (AB)MD(BA)N, in which A and D are dielectrics, B is a superconductor, and m and N are the stack numbers, respectively. It is found that the absorptance shows an unidirectional property at acertain resonant frequency. The number of resonant frequencies can be increased as the difference between M and N increases. This unidirectional resonant absorption is shown to belong to an antiresonance according to the frequiency response of effective surface impedance calculation.