標題: The formation of quasi-nondiffracting focused beams with second-harmonic generation of flower Laguerre-Gaussian modes
作者: Lin, Y. C.
Huang, K. F.
Chen, Y. F.
電子物理學系
Department of Electrophysics
公開日期: 1-十一月-2013
摘要: We theoretically demonstrate that the second-harmonic generation of a flower Laguerre-Gaussian mode can be exploited to form a quasi-nondiffracting focused beam. It is verified that the product of donut Laguerre-Gaussian modes with opposite topological charges leads to the formation of the quasi-nondiffracting focused beam. The divergence of the quasi-nondiffracting focused beam is numerically confirmed to be root 2l + 1 times less than that of the Gaussian TEM00 mode with the same beam waist parameter, where l is the azimuthal index of the flower Laguerre-Gaussian mode. In an experiment, we employ a diode-pumped solid-state laser resonator with intracavity second-harmonic generation to realize the formation of the quasi-nondiffracting focused beams.
URI: http://dx.doi.org/10.1088/1054-660X/23/11/115405
http://hdl.handle.net/11536/22954
ISSN: 1054-660X
DOI: 10.1088/1054-660X/23/11/115405
期刊: LASER PHYSICS
Volume: 23
Issue: 11
結束頁: 
顯示於類別:期刊論文


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  1. 000325915200016.pdf