420nm alkali blue laser based on two-photon absorption

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

doi:10.1117/12.2065373

3 February 2015 420nm alkali blue laser based on two-photon absorption

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

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92552R (2015) https://doi.org/10.1117/12.2065373
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

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 S_1/2 to 5² D_5/2, then relaxed to 6² P_3/2with mid infrared photon radiation. 420nm blue laser was achieved by the transition 6² P_3/2→5² S_1/2. 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.

Citation Download Citation

Yan-nan Tan, Yi-min Li, Tong Liu, Fa-quan Gong, Chun-yan Jia, Shu Hu, Bao-dong Gai, Jing-wei Guo, and Wan-fa Liu "420nm alkali blue laser based on two-photon absorption", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92552R (3 February 2015); https://doi.org/10.1117/12.2065373

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available