The Optical Absorption Properties of Metallic Gratings/GaAs-based Blocked Impurity Band (BIB) Hybrid Structure Detector

A novel Terahertz (THz) detector based on metallic gratings/GaAs-based Blocked Impurity Band (BIB) hybrid structure was designed and simulated in this work. By setting the periodic metallic gratings as 100μm with 50μm width, the absorption peak of the hybrid structure detector exists at the waveleng...

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Main Authors: Chen, Yulu, Tong, Wulin, Yang, Xiong, Wang, Bingbing, Zhang, Chuansheng, Zhang, Haoxing, Hu, Yongshan, Hou, Liwei, Wang, Xiaodong
Format: Conference Proceeding
Language:English
Subjects:
Absorption
Detectors
Electrodes
Gallium arsenide
Gratings
Impurities
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creator Chen, Yulu
Tong, Wulin
Yang, Xiong
Wang, Bingbing
Zhang, Chuansheng
Zhang, Haoxing
Hu, Yongshan
Hou, Liwei
Wang, Xiaodong
description A novel Terahertz (THz) detector based on metallic gratings/GaAs-based Blocked Impurity Band (BIB) hybrid structure was designed and simulated in this work. By setting the periodic metallic gratings as 100μm with 50μm width, the absorption peak of the hybrid structure detector exists at the wavelength of 249 μm, which is 4.84 times larger than the conventional BIB detector. Also, the resonate absorption peak can be modulated by changing the period of metallic gratings. Our design and simulation result provide a new scheme to fabricate the high-performance THz detector for the practical applications such as security check, biomedical treatment, and astronomical obseveration etc.
doi_str_mv 10.1109/IRMMW-THz.2019.8874344
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subjects Absorption
Detectors
Electrodes
Gallium arsenide
Gratings
Impurities
title The Optical Absorption Properties of Metallic Gratings/GaAs-based Blocked Impurity Band (BIB) Hybrid Structure Detector
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