Design and Analysis of Quantum Ring Photodetector Enhanced by Metallic Slits
عنوان مقاله: Design and Analysis of Quantum Ring Photodetector Enhanced by Metallic Slits
شناسه ملی مقاله: ICEE21_727
منتشر شده در بیست و یکمین کنفرانس مهندسی برق ایران در سال 1392
شناسه ملی مقاله: ICEE21_727
منتشر شده در بیست و یکمین کنفرانس مهندسی برق ایران در سال 1392
مشخصات نویسندگان مقاله:
Faramarz Alihosseini - Dept. of Elect. and Comp. Eng., Tarbiat Modares University, Tehran, Iran
Vahid Ahmadi
Ali Mir
خلاصه مقاله:
Faramarz Alihosseini - Dept. of Elect. and Comp. Eng., Tarbiat Modares University, Tehran, Iran
Vahid Ahmadi
Ali Mir
Effects of subwavelength metallic slits on the absorption efficiency using finite element method (FEM) are investigated. A Fabry-Perot (FP) cavity with Au slits and Aufilm acting as two reflectors is utilized to support resonance mode in multispectral bands. With considering this special feature, we propose an enhanced quantum ring photodetector in the terahertz range of the electromagnetic spectrum. Electric field distribution at different modes is studied and dependencesof the resonant absorption behaviours on the device parameters are shown. Compared with the conventional quantum ringphotodetector the designed photodetector provides about 47 times absorption enhancement at the frequency of 7.1 THz
کلمات کلیدی: Metallic slits, Quantum ring, Fabry-Perot cavity, Absorption enhancement
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/208784/