Analysis of symmetry thin-film waveguide stacked symmetrically by photonic crystals multilayer thins

Abstract

Abstract:

A symmetry thin-film waveguide stacked symmetrically by photonic crystals multilayer thins was investigated, its first stop band of photonic crystal multilayer film lies in the range of 73 THz～99 THz. For the electric-magnetic wave with the frequency range of 73 THz～99 THz, its transmission properties in the waveguide were investigated based on multilayer dielectric waveguide analysis method. The results show that only TE0 and TM0 modes can propagate in guided layer, furthermore, its power constrained factor (Γ) in the guided layer (central layer) is in 0.99～1, in other words, the electromagnetic wave at 73 THz～99 THz is fully constrained in guided layer, for comparison, the power constrained factor (Γ) of electric-magnetic wave with the frequency of 40 THz and 50 THz out of stop band is 0.84 and 0.86, respectively, thus, basing on the stop band properties of photonic crystal, the symmetry thin-film waveguide stacked symmetrically by photonic crystals multilayer thins would exhibit with ultra-low attenuation property.

Key words: photonic crystal waveguide, ultra-low attenuation, multilayer dielectric waveguide method, power constrained factor, transmission modes

LIAO Tongqing WANG Zhongzhu XIE Yanyu . Analysis of symmetry thin-film waveguide stacked symmetrically by photonic crystals multilayer thins[J]. J4, 2010, 27(5): 626-631.

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