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Multicolor infrared detection realized with two distinct superlattices separated by a blocking barrier
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Chin Chia Chen, Hsin Chia Lee, Chiun Peng |
| Copyright Year | 2002 |
| Abstract | A multicolor infrared photodetector was realized with two superlattices separated by a blocking barrier. The photoresponse is switchable between 7.5–12 and 6–8.5 mm by the bias polarity, and is also tunable by the bias magnitude in each wavelength regime. In addition, our detector exhibits advantages including little temperature dependence of the spectral response and the same order of responsivity in the two wavelength regimes. The measured peak responsivities in the two regimes are 117 mA/W at 9.8mm under 1 V and 129 mA/V at 7.4 mm under20.8 V, respectively. Also, the detectivities are comparable with the conventional multistack detector. The zero background peak detectivities are 2.3 10 cm Hz/W at 50 K and 9.8 mm under 0.7 V, and 8.7 310 cm Hz/W at 70 K and 7.4mm under20.7 V. © 2002 American Institute of Physics. @DOI: 10.1063/1.1466537 # |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ntur.lib.ntu.edu.tw//bitstream/246246/150040/1/15.pdf |
| Alternate Webpage(s) | https://ir.nctu.edu.tw/bitstream/11536/28877/1/000174623300005.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Arabic numeral 0 Blocking (computing) Detectors Exhibits as Topic Hertz (Hz) Photodetector Device Component polarity wavelength |
| Content Type | Text |
| Resource Type | Article |