Affiliation:
1. School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
Abstract
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.
Funder
Key Foundation of Educational Commission of Anhui Province
Subject
General Materials Science
Cited by
5 articles.
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