Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139973
Title: Indium antimonide uncooled photodetector with dual band photoresponse in the infrared and millimeter wave range
Authors: Tong, Jinchao
Suo, Fei
Zhou, Wei
Qu, Yue
Yao, Niangjuan
Hu, Tao
Huang, Zhiming
Zhang, Dao Hua
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Tong, J., Suo, F., Zhou, W., Qu, Y., Yao, N., Hu, T., . . . Zhang, D. H. (2019). Indium antimonide uncooled photodetector with dual band photoresponse in the infrared and millimeter wave range. Optics Express, 27(21), 30763-30772. doi:10.1364/OE.27.030763
Project: 2017-T1-002-117
Journal: Optics Express
Abstract: All-InSb film-based and spiral antenna-assisted Au-InSb-Au metal-semiconductor-metal detector is reported with dual-band photoresponse in the infrared (IR) and millimeter wave range. At IR, the detector exhibits a long wavelength 100% cut-off at 7.3 µm. Under an applied bias of 5 mA, the uncooled blackbody responsivity and specific detectivity are 3.5 A/W and 1×108 Jones, respectively. The f-3dB value measured at 2.94 µm is 75 KHz, corresponding to a detector rise speed of 4.7 µs. At millimeter wave range, the detector shows a narrowband response determined by the coupling of the antenna. A voltage responsivity of 25 V/W is achieved at 167 GHz (1.796 mm) under an applied bias of 25 mA, and the corresponding noise equivalent power (NEP) is 1.0×10-10 WHz-1/2, which can be improved to 1.8×10-12 WHz-1/2 if normalized to the real active semiconductor area. A f-3dB value of 17.5 KHz, corresponding to a detector rise speed of 20 µs is achieved in this range. A proof of principle for IR-modulated photoresponse for millimeter wave is achieved with a maximum modulation depth of 47.5%. This All-InSb film-based detector and the modulation are promising for future novel optoelectronic devices in IR and millimeter waves.
URI: https://hdl.handle.net/10356/139973
ISSN: 1094-4087
DOI: 10.1364/OE.27.030763
Rights: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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