期刊
APPLIED PHYSICS LETTERS
卷 115, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5118957
关键词
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资金
- Singapore Ministry of Education through the Academic Research Fund [MOE2016-T2-1-054, Tier 1-RG105/16, Tier 1-RG92/15, Tier 1-RG189/17 (S)]
- one-thousand talent programs from Chinese government
- Nanjing University of Science and Technology
Microlasers play an important role in the development of photonics and optoelectronics. As the rising star in the semiconductor family, all-inorganic lead halide perovskites (ILHPs) have been recognized as promising optical gain and lasing media. However, until now, achieving duplicable and single-mode microlasers remains a taunting challenge. Herein, we fabricated rectangular-shaped ILHP microsheets by the chemical vapor deposition method. The single-crystalline nature and the atomically smooth surfaces of the sample enable the achievement of lateral-cavity Fabry-Perot (F-P) microlasers. Specifically, the lasing characteristics including the wavelength, mode spacing, and Q-factors can be well-reproduced along the axial direction of the individual microsheet. By regulating the width of the ILHP microsheet, the desirable single-longitudinal mode F-P microlaser was eventually achieved. Our results provide an enabling coherent light source for optics-related applications.
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