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Proceedings Paper

420nm alkali blue laser based on two-photon absorption
Author(s): Yan-nan Tan; Yi-min Li; Tong Liu; Fa-quan Gong; Chun-yan Jia; Shu Hu; Bao-dong Gai; Jing-wei Guo; Wan-fa Liu
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Paper Abstract

Based on two-photon absorption, a 420nm blue laser of alkali Rb vapor was demonstrated, and a dye laser was used as the pumping laser. Utilizing the energy level structure of Rb atom, lasering mechanism and two-photon absorption process are analyzed. Absorbing two 778.1nm photons, Rb atoms were excited from 52 S1/2 to 52 D5/2, then relaxed to 62 P3/2 with mid infrared photon radiation. 420nm blue laser was achieved by the transition 62 P3/2→52 S1/2. To improve efficiency of the blue laser, two-photon resonant excitation pumped alkali vapor blue lasers are proposed, which will be good beam quality, high efficiency and scalable blue lasers. The development of diode pumped alkali vapor blue laser is expected.

Paper Details

Date Published: 3 February 2015
PDF: 5 pages
Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92552R (3 February 2015); doi: 10.1117/12.2065373
Show Author Affiliations
Yan-nan Tan, Dalian Institute of Chemical Physics (China)
Yi-min Li, Dalian Institute of Chemical Physics (China)
Tong Liu, Dalian Institute of Chemical Physics (China)
Fa-quan Gong, Dalian Institute of Chemical Physics (China)
Chun-yan Jia, Dalian Institute of Chemical Physics (China)
Shu Hu, Dalian Institute of Chemical Physics (China)
Bao-dong Gai, Dalian Institute of Chemical Physics (China)
Jing-wei Guo, Dalian Institute of Chemical Physics (China)
Wan-fa Liu, Dalian Institute of Chemical Physics (China)


Published in SPIE Proceedings Vol. 9255:
XX International Symposium on High-Power Laser Systems and Applications 2014
Chun Tang; Shu Chen; Xiaolin Tang, Editor(s)

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