Investigation of the Mode Structures of Multiphoton Induced Ultraviolet Laser in a ZnO Microrod
Keyword(s):
Uv Laser
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Hexagonal wurtzite structural ZnO microrods were fabricated by vapor-phase transport method. Under the excitation of a pulse laser with 1200 nm wavelength, the multiphoton induced ultraviolet (UV) laser was observed in a microrod. The dependence of the laser mode structures on pump intensity was investigated. The result indicates that the laser belongs to whispering gallery mode (WGM) at low pump intensity and Fabry-Perot (FP) mode at high pump intensity. The corresponding positive feedback mechanisms were discussed.
2021 ◽
Vol 128
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pp. 105783
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2011 ◽
Vol 2
(3)
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pp. 035004
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2000 ◽
Vol 178
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pp. 25-34
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1997 ◽
Vol 11
(3-4)
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pp. 107-116
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2014 ◽
Vol 212
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pp. 80-86
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1996 ◽
Vol 7
(6)
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pp. 299-308
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