期刊
OPTICS EXPRESS
卷 27, 期 21, 页码 29962-29971出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.27.029962
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资金
- National Natural Science Foundation of China [61604132, U1604263, U1804155]
- China National Funds for Distinguished Young Scientists [61425021]
- National Key R&D Program of China [2018YFB0406500]
High performance solar-blind photodetectors have been fabricated from diamond wafers. The peak responsivity is 13.0 A/W at 222 nm with a dark current of 0.93 nA under 60 V bias. The rise and decay times of the photodetector are about 1.3 mu s and 203 mu s, respectively. The responsivity and response time of the device are both among the best values ever reported for diamond-based photodetectors. A solar-blind optical communication system has been constructed by employing the diamond photodetector as a signal receiver for the first time. Benefiting from the high spectral selectivity of the diamond photodetector, the communication system has excellent anti-interference ability. The results reported in this paper may pave the way for the future application of diamond-based solar-blind photodetectors in confidential communications. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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