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Fabrication of a reflective mirror within wide incidence angles for mid-infrared wavelength

  • Miao Fengjuan
  • , Zhang Jie
  • , Xu Sliaohui
  • , Wang Lianwei*
  • , Chu Junhao
  • , Cao Zhishen
  • , Zhan Peng
  • , Wang Zhenlin
  • *此作品的通讯作者
  • East China Normal University
  • Chinese Academy of Sciences
  • Nanjing University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

One-dimensional (1-D) photonic crystal with photonic band-gap based on porous silicon is fabricated with alternative etching currents during anodization. The microstructure was characterized by scanning electron microscopy and the optical reflectance spectra by Fourier transform infrared spectroscopy. A band-gap centered at 6 microns with a bandwidth of 3 microns has been successfully obtained. The prepared multilayer structure can reflect mid-infrared within a wide incidence angle up to 50°. After proper oxidation process, its thermal properties can be improved significantly, and meanwhile the band-gap only slightly shifts to that centered at 5.7 microns. PECVD of Si3N4 is employed to improve the surface morphology in order to make the structure suitable to the fabrication of sensors. It is found that deposition of Si3N4 does not change the reflectance properties of the structures.

源语言英语
主期刊名META08 - Proceedings of the 2008 International Workshop on Metamaterials
173-176
页数4
DOI
出版状态已出版 - 2008
活动2008 International Workshop on Metamaterials, META08 - Nanjing, 中国
期限: 9 11月 200812 11月 2008

出版系列

姓名META08 - Proceedings of the 2008 International Workshop on Metamaterials

会议

会议2008 International Workshop on Metamaterials, META08
国家/地区中国
Nanjing
时期9/11/0812/11/08

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