| DOI | Resolve DOI: https://doi.org/10.1109/LED.2011.2112632 |
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| Author | Search for: Zhang, R.1; Search for: Guo, X.G.1; Search for: Song, C.Y.1; Search for: Buchanan, M.1; Search for: Wasilewski, Z.R.1; Search for: Cao, J.C.; Search for: Liu, H.C.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Subject | Black body radiation; GaAs/AlGaAs; grating; Incident detection; Light coupling efficiency; Metal grating; Modal method; Optimization conditions; Photocurrent spectrum; Quantum well; quantum well (QW); Terahertz; THz waves; Antenna radiation; Detectors; Optoelectronic devices; Photodetectors; Quantum optics; Semiconductor quantum wells; Terahertz waves; Terahertz wave detectors |
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| Abstract | Three terahertz (THz) GaAs/AlGaAs quantum-well photodetectors with different 1-D metal gratings are fabricated for front-incident detection of THz waves. Photocurrent spectra are acquired and compared with 45 ° incident facet samples (without grating), and peak responsivities are determined with a calibrated blackbody radiation source. The results show that these gratings can couple THz waves into detectors effectively, resulting in good detector responsivities. The modal method is employed to simulate the light coupling efficiency and the optimization conditions of the gratings. © 2011 IEEE. |
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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271436 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 7fe05231-abda-405c-9309-bd7183b6022a |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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