Research Progress on Terahertz Quantum-Well Photodetector and Its Application
Compared with other typical terahertz (THz) detectors, the quantum-well photodetector (QWP) has the advantages of high detection sensitivity, fast response, mature fabrication, small size, and easy integration. Therefore, it is suitable for high-speed detection and imaging applications at the THz ba...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:f41ae69f32b846778bc08c7817673be12021-11-15T15:53:27ZResearch Progress on Terahertz Quantum-Well Photodetector and Its Application2296-424X10.3389/fphy.2021.751018https://doaj.org/article/f41ae69f32b846778bc08c7817673be12021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphy.2021.751018/fullhttps://doaj.org/toc/2296-424XCompared with other typical terahertz (THz) detectors, the quantum-well photodetector (QWP) has the advantages of high detection sensitivity, fast response, mature fabrication, small size, and easy integration. Therefore, it is suitable for high-speed detection and imaging applications at the THz band. Researchers, both domestic and overseas, have systematically studied material design and device performance of the THz QWP. The design of the device is such that the peak frequency error is within 8%, the maximum peak responsibility is 5.5 A/W, the fastest response speed is 6.2 GHz, the best noise equivalent power is ∼10−13 W/Hz0.5, and the spectrum range is 2.5–6.5 THz. In this article, firstly the basic principles and theoretical calculations of the THz QWP are described, and then the research progress of the THz QWP in our research group at imaging and communication is reviewed, which looks forward to its future development.Dixiang ShaoZhanglong FuZhiyong TanZhiyong TanChang WangChang WangFucheng QiuFucheng QiuLiangliang GuWenjian WanJuncheng CaoJuncheng CaoFrontiers Media S.A.articleterahertz detectionterahertz imagingterahertz communicationterahertzterahertz quantum-well photodetectorPhysicsQC1-999ENFrontiers in Physics, Vol 9 (2021) |
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DOAJ |
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DOAJ |
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EN |
| topic |
terahertz detection terahertz imaging terahertz communication terahertz terahertz quantum-well photodetector Physics QC1-999 |
| spellingShingle |
terahertz detection terahertz imaging terahertz communication terahertz terahertz quantum-well photodetector Physics QC1-999 Dixiang Shao Zhanglong Fu Zhiyong Tan Zhiyong Tan Chang Wang Chang Wang Fucheng Qiu Fucheng Qiu Liangliang Gu Wenjian Wan Juncheng Cao Juncheng Cao Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| description |
Compared with other typical terahertz (THz) detectors, the quantum-well photodetector (QWP) has the advantages of high detection sensitivity, fast response, mature fabrication, small size, and easy integration. Therefore, it is suitable for high-speed detection and imaging applications at the THz band. Researchers, both domestic and overseas, have systematically studied material design and device performance of the THz QWP. The design of the device is such that the peak frequency error is within 8%, the maximum peak responsibility is 5.5 A/W, the fastest response speed is 6.2 GHz, the best noise equivalent power is ∼10−13 W/Hz0.5, and the spectrum range is 2.5–6.5 THz. In this article, firstly the basic principles and theoretical calculations of the THz QWP are described, and then the research progress of the THz QWP in our research group at imaging and communication is reviewed, which looks forward to its future development. |
| format |
article |
| author |
Dixiang Shao Zhanglong Fu Zhiyong Tan Zhiyong Tan Chang Wang Chang Wang Fucheng Qiu Fucheng Qiu Liangliang Gu Wenjian Wan Juncheng Cao Juncheng Cao |
| author_facet |
Dixiang Shao Zhanglong Fu Zhiyong Tan Zhiyong Tan Chang Wang Chang Wang Fucheng Qiu Fucheng Qiu Liangliang Gu Wenjian Wan Juncheng Cao Juncheng Cao |
| author_sort |
Dixiang Shao |
| title |
Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| title_short |
Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| title_full |
Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| title_fullStr |
Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| title_full_unstemmed |
Research Progress on Terahertz Quantum-Well Photodetector and Its Application |
| title_sort |
research progress on terahertz quantum-well photodetector and its application |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/f41ae69f32b846778bc08c7817673be1 |
| work_keys_str_mv |
AT dixiangshao researchprogressonterahertzquantumwellphotodetectoranditsapplication AT zhanglongfu researchprogressonterahertzquantumwellphotodetectoranditsapplication AT zhiyongtan researchprogressonterahertzquantumwellphotodetectoranditsapplication AT zhiyongtan researchprogressonterahertzquantumwellphotodetectoranditsapplication AT changwang researchprogressonterahertzquantumwellphotodetectoranditsapplication AT changwang researchprogressonterahertzquantumwellphotodetectoranditsapplication AT fuchengqiu researchprogressonterahertzquantumwellphotodetectoranditsapplication AT fuchengqiu researchprogressonterahertzquantumwellphotodetectoranditsapplication AT lianglianggu researchprogressonterahertzquantumwellphotodetectoranditsapplication AT wenjianwan researchprogressonterahertzquantumwellphotodetectoranditsapplication AT junchengcao researchprogressonterahertzquantumwellphotodetectoranditsapplication AT junchengcao researchprogressonterahertzquantumwellphotodetectoranditsapplication |
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