宽带反射器和带通滤波器，采用Ge亚波长周期膜

International Conference on Thin Film Physics and Applications Pub Date : 2010-10-11 DOI:10.1117/12.888278

Tian Sang, Tuo Cai, Xiaowei Zhang, Sanhong Ding, Shaohong Cai, Zhanshan Wang

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摘要

采用厚度为3.20 μm的Ge亚波长周期膜制备了宽带反射器和带通滤波器。Ge亚波长周期膜的强折射率调制使漏模共振的带宽增加，从而在λ=10.60 μm附近激发漏模共振TE1、1、TE2、1和TE3、0可能相互作用形成宽反射带或透射通带。

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Wideband reflector and bandpass filter by using a Ge subwavelength periodic membrane

Wideband reflector and bandpass filter are obtained by using a Ge subwavelength periodic membrane with the thickness kept constant at 3.20 μm. The strong refractive-index modulation of the Ge subwavelength periodic membrane yields increased bandwidth of the leaky mode resonances, thus the excitation of the leaky mode resonances TE1,1, TE2,1, and TE3,0 may interact to form a broad reflection band or a transmission passband near λ=10.60 μm.

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International Conference on Thin Film Physics and Applications

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