luo zhaoming, tang zhixiang, cao shiming, et al. Polarization-independent and non-omnidirectional defect modes of one-dimensional photonic crystals with negative-index materials[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
luo zhaoming, tang zhixiang, cao shiming, et al. Polarization-independent and non-omnidirectional defect modes of one-dimensional photonic crystals with negative-index materials[J]. High Power Laser and Particle Beams, 2010, 22.
luo zhaoming, tang zhixiang, cao shiming, et al. Polarization-independent and non-omnidirectional defect modes of one-dimensional photonic crystals with negative-index materials[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
luo zhaoming, tang zhixiang, cao shiming, et al. Polarization-independent and non-omnidirectional defect modes of one-dimensional photonic crystals with negative-index materials[J]. High Power Laser and Particle Beams, 2010, 22.
Key Laboratory of Micro/Nano Optoelectronic Devices of Ministry of Education,School of Computer and Communication,Hunan University,Changsha 410082,China;
2.
College of Information and Telecommunications Engineering,Hunan Institute of Science and Technology,Yueyang 414006,China
Polarization properties of defect modes of one-dimensional photonic crystals with negative-index materials are investigated by optical transfer matrix method. It is found that the defect modes in the zero-average-index gap have a strong dependence on the incident angles and polarization. Through tuning the optimized parameters of the defect layer, a series of polarization-independent and non-omnidirectional defect modes is obtained with the increase of incident angle, which is not available in conventional one-dimensional photonic crystals. Based on these defect modes, we have designed low-, high- and band pass spatial filters which have a polarization-independent feature comparing with spatial filters of conventional photonic crystals.
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