The laser-intensity dependence of the photoassociation spectrum of the ultracold Cs2(6S1/2+6P1/2) 0u+ long-range molecular state

doi:10.1088/1674-1056/22/8/088701

Abstract The high-resolution photoassociation spectrum of the ultracold cesium molecular 0_u⁺ state below the 6S_1/2+6P_1/2 limit is presented in this paper. The saturation of the photoassociation scattering probability is observed from the dependence of the trap-loss probability on the photoassociation laser intensity. The corresponding resonant line width is also demonstrated to increase linearly with increasing photoassociation laser intensity. Our experimental data have good consistency with the theoretical saturation model of Bohn and Julienne [Bohn J L and Julienne P S 1999 Phys. Rev. A 60 1].

Keywords: photoassociation spectrum intensity dependence high resolution

Received: 22 November 2012
Revised: 10 January 2013
Published: 27 June 2013

PACS:	87.64.kv	(Fluorescence)
	42.62.Fi	(Laser spectroscopy)
	33.20.Vq	(Vibration-rotation analysis)
	33.70.Jg	(Line and band widths, shapes, and shifts)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the 863 Program (Grant No. 2011AA010801), the National Natural Science Foundation of China (Grant Nos. 61008012, 10934004, 60978001, 60978018, and 11174187), the International Science & Technology Cooperation Program of China (Grant No. 2011DFA12490), the National Natural Science Foundation of China for Excellent Research Team (Grant No. 61121064), the Natural Science Foundation of Shanxi Province, China (Grant Nos. 2011011004 and 2011081030), and the New Teacher Fund of the Ministry of Education of China (Grant No. 20101401120004).

Corresponding Authors: Wang Li-Rong
E-mail: wlr@sxu.edu.cn

Cite this article:

Jin Li, Feng Guo-Sheng, Wu Ji-Zhou, Ma Jie, Wang Li-Rong, Xiao Lian-Tuan, Jia Suo-Tang The laser-intensity dependence of the photoassociation spectrum of the ultracold Cs₂(6S_1/2+6P_1/2) 0_u⁺ long-range molecular state 2013 Chin. Phys. B 22 088701

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