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Proceedings Article

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

[+] Author Affiliations
Tian Sang, Tuo Cai, Xiaowei Zhang, Sanhong Ding

Qiannan Normal College for Nationalities (China)

Shaohong Cai

Guizhou College of Finance and Economics (China)

Zhanshan Wang

Tongi Univ. (China)

Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79950W (February 17, 2011); doi:10.1117/12.888278
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From Conference Volume 7995

  • Seventh International Conference on Thin Film Physics and Applications
  • Junhao Chu; Zhanshan Wang
  • Shanghai, China | September 24, 2010

abstract

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.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Tian Sang ; Tuo Cai ; Xiaowei Zhang ; Sanhong Ding ; Shaohong Cai, et al.
"Wideband reflector and bandpass filter by using a Ge subwavelength periodic membrane", Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79950W (February 17, 2011); doi:10.1117/12.888278; http://dx.doi.org/10.1117/12.888278


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