Radiative lifetime measurements of odd-parity high-excited levels of Sn I by time-resolved laser spectroscopy

doi:10.1088/1674-1056/18/9/035

Abstract

Abstract Natural radiative lifetimes of five higher-lying odd-parity levels 5p7s ³P₁^o, 5p5d ¹P₁^o, 5p6d ³F₂^o, ³D₁^o and ³F₃^o in neutral tin are measured by the time-resolved laser-induced fluorescence (TR-LIF) technique and the atomic beam method. All these lifetimes are not longer than 100 ns and they are found to be shorter than the lifetimes of even-parity levels in the same energy region. The results reported in this paper provide important transition parameters for highly-excited atomic Sn, which may be useful for theoretically calculating excited heavy atoms.

Keywords: radiative lifetime atomic Sn highly-excited level laser spectroscopy

Received: 14 April 2009
Revised: 20 April 2009
Accepted manuscript online:

PACS:	32.70.Cs	(Oscillator strengths, lifetimes, transition moments)
	07.57.-c	(Infrared, submillimeter wave, microwave and radiowave instruments and equipment)
	32.50.+d	(Fluorescence, phosphorescence (including quenching))

Fund: Project supported by the National Natural Science Foundation of China (Grant No 10574056) and the program for New Century Excellent Talents in University, China (Grant No NCET-05-0302).

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Xu Jia-Xin(徐嘉鑫), Feng Yan-Yan(凤艳艳), Sun Gui-Juan(孙桂娟), and Dai Zhen-Wen(戴振文) Radiative lifetime measurements of odd-parity high-excited levels of Sn I by time-resolved laser spectroscopy 2009 Chin. Phys. B 18 3828

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Radiative lifetime measurements of odd-parity high-excited levels of Sn I by time-resolved laser spectroscopy

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