New resonant cavity-enhanced absorber structures for mid-infrared detector applications

被引：1
作者：
Moshe Zohar
Mark Auslender
Lorenzo Faraone
Shlomo Hava
机构：
[1] Ben Gurion University of the Negev,Department of Electrical and Computer Engineering
[2] The University of Western Australia,School of Electrical, Electronic and Computer Engineering
来源：
Optical and Quantum Electronics | 2012年 / 44卷
关键词：
Optical resonant cavity; Photodetectors; HgCdTe; Gratings;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new dielectric Fabry–Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with ~ 100% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to ~ 100 % and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating’s fabrication errors.
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页码：95 / 102
页数：7
相关论文
共 44 条
[1]  
Auslender M.(1996)Scattering-matrix propagation algorithm in full-vectorial optics of multilayer grating structures Opt. Lett. 21 1765-1767
[2]  
Hava S.(2006)High reflectivity air-bridge subwavelength grating reflector and Fabry–Perot cavity in AlGaAs/GaAs Opt. Express 14 2573-2582
[3]  
Bissaillon E.(2003)Resonant cavity enhanced photodetectors (RCE-PDs): structure, material analysis and optimization Proc. SPIE 4999 363-378
[4]  
Tan D.(1995)Silicon grating-based mirror for 1.3−μm polarized beams: MATLAB-aided design Appl. Opt. 34 1053-1058
[5]  
Faraji B.(2007)Resonant microcavity enhanced infrared photodetectors Opt. Appl. 17 405-413
[6]  
Kirk A.G.(2007)DBR subwavelength grating, and photonic crystal slab Fabry–Perot cavity design using phase analysis by FDTD Opt. Express 15 10330-10339
[7]  
Chrostowski L.(2004)Ultrabroadband mirror using low-index cladded subwavelength grating IEEE Photonics Technol. Lett. 16 518-520
[8]  
Plant D.V.(2004)Modelling and optimisation of high temperature detectors of long wavelength infrared radiation with optically resonant cavity Opto-Electron. Rev. 12 157-160
[9]  
El-Batawy Y.M.(1995)Resonant cavity enhanced photonic devices J. Appl. Phys. 78 607-639
[10]  
Deen M.J.(2005)Mercury cadmium telluride resonant-cavity-enhanced photoconductive infrared detectors Appl. Phys. Lett. 87 1-3
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