Applications of the expanded basis method to study the behavior of light in polaritonic photonic crystal slab with losses |
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Authors: | Li-Ming Zhao Ben-Yuan Gu Guo-Zhen Yang |
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Institution: | 1. Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China;2. Department of Physics, Capital Normal University, Beijing 100037, China |
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Abstract: | We apply the expanded basis method (EBM) to investigate the behavior of light in polaritonic photonic crystal (PC) slabs with losses. The influence of losses on transmissivity is studied. It is found that the transmissivity is significantly lowered with the increase of losses, in particular, it is abruptly decreased in the vicinity of transverse-optical-phonon frequency. The electromagnetic (EM) dissipation is mainly dominated by the imaginary part of dielectric constant of PC. The larger the imaginary part of the dielectric constant, the more the EM energy depletion is. The variation of EM dissipation with the number of period layers in the PC slab is approximately linear or oscillatory increase with the number of period layers. |
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Keywords: | 42 70 Qs 42 25 Gy 42 68 Ay 42 25 Bs |
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