420 nm alkali blue laser based on two-photon absorption

被引：0

作者：

Tan, Yannan ^{[1
]}

Li, Yimin ^{[1
]}

Gong, Faquan ^{[1
]}

Liu, Tong ^{[1
]}

Liu, Wanfa ^{[1
]}

机构：

[1] Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2013年 / 40卷 / 10期

关键词：

Alkali vapor laser; Blue laser; Lasers; Two-photon absorption;

D O I：

10.3788/CJL201340.1002011

中图分类号：

学科分类号：

摘要：

Based on two-photon absorption and pumped by a 778.1 nm dye laser, a 420 nm blue laser is achieved by using alkali Rb vapor as gain medium. Utilizing the energy level structure of Rb atom, blue laser mechanism and two-photon absorption process are analysed. By absorbing two 778.1 nm photons, Rb atoms are transitted from ground state 52S1/2 to excited state 52D5/2, then to laser up state 62P3/2 and ground state 52S1/2 populating inversion is fromed through radiating mid-infrared photon. The 420 nm blue laser is achieved through 62P3/2 to 52S1/2. The development prospect of laser diode pumped alkali vapor blue laser is expected.

引用

共 17 条

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