Optical field simulation of edge coupled terahertz quantum well photodetectors

Optical field simulation of edge coupled terahertz quantum well photodetectors

By finite difference time domain (FDTD) simulation, we report on the optical field distribution within edge coupled terahertz quantum well photodetectors (THz QWPs) in detail. The coupling efficiency of THz QWP structures are studied from three aspects, including the electrode geometry, the position...

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Main Authors: Lujia Li, Peng Bai, Yueheng Zhang, Wenzhong Shen, Juncheng Cao
Format: Article
Language:English
Published: AIP Publishing LLC 2018-03-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5011956
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spelling doaj-26a5fb7e10a5465fbfe987c34a739c9b2020-11-24T22:09:09ZengAIP Publishing LLCAIP Advances2158-32262018-03-0183035214035214-1110.1063/1.5011956054803ADVOptical field simulation of edge coupled terahertz quantum well photodetectorsLujia Li0Peng Bai1Yueheng Zhang2Wenzhong Shen3Juncheng Cao4Key Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Artificial Structures and Quantum Control, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, ChinaBy finite difference time domain (FDTD) simulation, we report on the optical field distribution within edge coupled terahertz quantum well photodetectors (THz QWPs) in detail. The coupling efficiency of THz QWP structures are studied from three aspects, including the electrode geometry, the position of the active region and the coupling angle. According to the simulation results, proper electrode geometry is suggested in different frequency region, and the optimal position of active region and coupling angle are presented. These results provide a useful guidance for the design and fabrication of the edge coupled THz QWP.http://dx.doi.org/10.1063/1.5011956
collection DOAJ
language English
format Article
sources DOAJ
author Lujia Li
Peng Bai
Yueheng Zhang
Wenzhong Shen
Juncheng Cao
spellingShingle Lujia Li
Peng Bai
Yueheng Zhang
Wenzhong Shen
Juncheng Cao
Optical field simulation of edge coupled terahertz quantum well photodetectors
AIP Advances
author_facet Lujia Li
Peng Bai
Yueheng Zhang
Wenzhong Shen
Juncheng Cao
author_sort Lujia Li
title Optical field simulation of edge coupled terahertz quantum well photodetectors
title_short Optical field simulation of edge coupled terahertz quantum well photodetectors
title_full Optical field simulation of edge coupled terahertz quantum well photodetectors
title_fullStr Optical field simulation of edge coupled terahertz quantum well photodetectors
title_full_unstemmed Optical field simulation of edge coupled terahertz quantum well photodetectors
title_sort optical field simulation of edge coupled terahertz quantum well photodetectors
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2018-03-01
description By finite difference time domain (FDTD) simulation, we report on the optical field distribution within edge coupled terahertz quantum well photodetectors (THz QWPs) in detail. The coupling efficiency of THz QWP structures are studied from three aspects, including the electrode geometry, the position of the active region and the coupling angle. According to the simulation results, proper electrode geometry is suggested in different frequency region, and the optimal position of active region and coupling angle are presented. These results provide a useful guidance for the design and fabrication of the edge coupled THz QWP.
url http://dx.doi.org/10.1063/1.5011956
work_keys_str_mv AT lujiali opticalfieldsimulationofedgecoupledterahertzquantumwellphotodetectors
AT pengbai opticalfieldsimulationofedgecoupledterahertzquantumwellphotodetectors
AT yuehengzhang opticalfieldsimulationofedgecoupledterahertzquantumwellphotodetectors
AT wenzhongshen opticalfieldsimulationofedgecoupledterahertzquantumwellphotodetectors
AT junchengcao opticalfieldsimulationofedgecoupledterahertzquantumwellphotodetectors
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