期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 50, 期 22, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aa6cf5
关键词
inorganic perovskites; multiphoton absorption; amplified spontaneous emission; lasing
资金
- University Grant Council-Research Grants Council [PolyU 153036/14P]
- National Natural Science Foundation of China [11374309, 61378071]
- Foundation of Director of Institute of Solid State Physics, Chinese Academy of Sciences [2016DFY24]
Nonlinear optical characteristics of single-crystalline CsPbCl3 perovskite microcavities under multiphoton excitation are studied. The high 3-photon absorption coefficient of the clusters of CsPbCl3 microplates is found to be 2.1 x 10(-5) cm(3) GW(-2) for the support of low-temperature amplified spontaneous emission. Furthermore, stable lasing emission is observed from single CsPbCl3 microplates under 3-photon excitation at 83 K. Hence, we have shown that single-crystalline CsPbCl3 perovskite semiconductor microstructures have excellent nonlinear optical properties for the realization of novel upconversion lasing devices.
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