Acta Photonica Sinica, Volume. 40, Issue 7, 1076(2011)
Polarization Bandpass Filters Based on Onedimensional Dielectric and Magnetic Photonic Crystals
Onedimensional traditional pure dielectric photonic crystals have disadvantages that the design of TEpolarization bandpass filters is difficult, and the bandgaps of TE and TMpolarization bandpass filters are narrow. Based on the fact that a greater permittivity (permeability) than permeability (permittivity) makes wider TE (TM) bands than TM (TE) bands, three kinds of filters, (TEpolarization bandpass filter, TMpolarization bandpass filter and doublepolarization bandpass filter), were designed by stopband superposition of onedimensional photonic crystals. Each of them was a heterostructure constructed by two subphotoniccrystals, hence the structure provided a narrowfrequency passband and the bandgap was enlarged. Due to the combination of dielectric and magnetic materials, the proposed design has simple structures with wide bandgaps and narrowfrequency passbands. Besides, the effect of magnetic material dispersion on the performance of polarization filters was discussed using a kind of magnetic material which has been reported.
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DONG Qiuyun, MA Shuyun, WANG Hui, QIANG Haixia. Polarization Bandpass Filters Based on Onedimensional Dielectric and Magnetic Photonic Crystals[J]. Acta Photonica Sinica, 2011, 40(7): 1076
Received: Mar. 23, 2011
Accepted: --
Published Online: Aug. 10, 2011
The Author Email: Qiuyun DONG (dongqiuyun2005@163.com)