Spectral response of dielectric thin-film helicoidal bianisotropic medium bilayer

被引：20
作者：
Lakhtakia, A
Hodgkinson, IJ
机构：
[1] Penn State Univ, Dept Engn Sci & Mech, Computat & Theoret Mat Sci Grp, CATMAS, University Pk, PA 16802 USA
[2] Univ Otago, Dept Phys, Dunedin, New Zealand
来源：
OPTICS COMMUNICATIONS | 1999年 / 167卷 / 1-6期
关键词：
axial propagation; bianisotropic medium; optical filters; thin films;
D O I：
10.1016/S0030-4018(99)00324-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A proposed use of a dielectric thin-film helicoidal bianisotropic medium (TFHBM) bilayer as a narrow bandstop biter is examined, taking dispersion as well as dissipation into account. All constitutive parameters are supposed to be Lorentzian functions of frequency, displaying resonance in the ultraviolet regime. Dissipation in the TFHBM bilayer makes the spectral signature of the circular Bragg phenomenon polarization-dependent and gives rise to absorption. Three ways to improve the spectral response towards narrow bandstop filtering application are presented. (C) 1999 Published by Elsevier Science B.V. Al rights reserved.
引用
收藏
页码：191 / 202
页数：12
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