DocumentCode
608313
Title
Resonant cavity enhanced quantum ring terahertz photodetector
Author
Alihosseini, F. ; Ahmadi, V. ; Mir, A.
Author_Institution
Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
fYear
2012
fDate
24-26 Dec. 2012
Firstpage
1
Lastpage
4
Abstract
In this paper, based on effective mass method, we study the absorption characteristics of InAs/GaAs quantum ring photodetector in terahertz range. To enhance the absorption in active region of this photodetector we propose a metallic Fabry-Perot resonant cavity with Au nanoslits as top reflector and Au film as the bottom mirror. It is shown that with this structure at frequency of ~7.1 THz, absorption can be enhanced about 55 times.
Keywords
Fabry-Perot resonators; cavity resonators; gallium arsenide; indium compounds; photodetectors; terahertz wave detectors; InAs-GaAs; absorption; metallic Fabry-Perot resonant cavity; mirror; quantum ring terahertz photodetector enhancement; resonant cavity; Fabry-Perot cavity; absorption; nanoslits; quantum efficiency; quantum ring;
fLanguage
English
Publisher
ieee
Conference_Titel
Millimeter -Wave and Terahertz Technologies (MMWaTT), 2012 Second Conference on
Conference_Location
Tehran
ISSN
2157-0965
Print_ISBN
978-1-4673-4954-3
Type
conf
DOI
10.1109/MMWaTT.2012.6532153
Filename
6532153
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