基于表面等离激元的长波QWIP光栅优化

王国东, 倪璐, 朱红伟, 王赛丽

王国东, 倪璐, 朱红伟, 王赛丽. 基于表面等离激元的长波QWIP光栅优化[J]. 应用光学, 2014, 35(5): 785-788.
引用本文: 王国东, 倪璐, 朱红伟, 王赛丽. 基于表面等离激元的长波QWIP光栅优化[J]. 应用光学, 2014, 35(5): 785-788.
shu
Wang Guo-dong, Ni Lu, Zhu Hong-wei, Wang Sai-li. Grating optimization of long-wavelength QWIP based on surface plasmon[J]. Journal of Applied Optics, 2014, 35(5): 785-788.
Citation: Wang Guo-dong, Ni Lu, Zhu Hong-wei, Wang Sai-li. Grating optimization of long-wavelength QWIP based on surface plasmon[J]. Journal of Applied Optics, 2014, 35(5): 785-788.
shu

基于表面等离激元的长波QWIP光栅优化

  • 河南理工大学 电气工程与自动化学院,河南 焦作 454003

基金项目: 

国家自然科学基金（U1304608）;河南省高校青年骨干教师支持计划基金（2012GGJS-056）;河南理工大学杰出青年（52013-05）

详细信息
    通讯作者:

    王国东（1979-），男，河南焦作人，博士，副教授，主要从事光电子器件、红外探测器方面的研究工作。 Email：wgd@hpu.edu.cn

  • 中图分类号: TN362

Grating optimization of long-wavelength QWIP based on surface plasmon

  • School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454003,China

摘要

    摘要
  • 摘要: 为了提高长波量子阱红外探测器的灵敏度及探测率，采用表面等离激元效应来提高量子阱红外探测器中二维光栅的耦合效率。利用三维时域有限差分算法，分析表面等离激元作用下，长波量子阱红外探测器中二维金属薄膜光栅参数对入射光的调制作用。计算结果表明，对于8 m的入射光，当光栅周期P=2.8 m，孔直径D=1.4 m，光栅层厚度L=0.04 m时，XY平面内Z方向电场值最大，光栅的耦合效率最高。
    Abstract: In order to improve the sensitivity and detectivity of the long-wavelength quantum well infrared photodetector (QWIP) ,the surface plasmon was adopted to enhance the optical coupling efficience of two-dimensional grating .The modulation effects of the 2-D metal film grating parameters in long-wavelength QWIP on the incident light were analyzed by using the 3-D finite-difference time-domain (FDTD) algorithm based on surface plasmon. Calculation results shown that the electric field along the Z direction reaches its maximum in the X-Y plane when the grating parameters were taken as P=2.8 m , D=1.4 m and L=0.04 m for 8 m incident light.
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  • 刊出日期:  2014-10-14

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