Fluorescence properties in a single driven four-level atomic system

doi:10.1088/1674-1056/19/11/113202

Abstract The spontaneous emission decay dynamics of a tripod configuration four-level atom driven by a single laser field is studied. Under different initial conditions, we discuss the effects of quantum interference and detuning of external driving field on atomic spontaneous emission properties. For the larger detuning, the interesting phenomena of the spectral line narrowing are found which stem from the contribution of external driving field.

Keywords: spontaneous emission spectrum four-level atom driving field

Received: 19 January 2010
Revised: 23 March 2010
Accepted manuscript online:

PACS:	32.50.+d	(Fluorescence, phosphorescence (including quenching))
	37.10.Vz	(Mechanical effects of light on atoms, molecules, and ions)
	42.50.Ct	(Quantum description of interaction of light and matter; related experiments)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10904025, 10674037 and 50836002), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20092302120024), the China Postdoctoral Science Foundation (Grant No. 20090451007), the Development Program for Outstanding Young Teachers in Harbin Institute of Technology, China (Grant No. HITQNJS. 2009. 030.), the National Basic Research Program of China (Grant No. 2007CB307001), and the Program of Excellent Team in Harbin Institute of Technology China.

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Jiang Xiang-Qian(姜向前), Lü Zhi-Wei(吕志伟), Zhang Bing(张冰), and Sun Xiu-Dong(孙秀冬) Fluorescence properties in a single driven four-level atomic system 2010 Chin. Phys. B 19 113202

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