Chinese Journal of Lasers B

Observation of Single-slope Quasistatic Wings of Laser Induced Collision Energy Transfer

Liming Hu, Cheng Deying, Zao Xiaoyan, Zhiwei Lü, Zuguang Ma

Published Jan 1, 2001• 0 citations

Abstract

Three transitions of laser induced collision energy transfer from Eu (6s6p) 8P 5/2 to Sr (5s10s) 1S 0, Eu (6s6p) 8P 7/2 to Sr (5s9d) 1D 2 and Eu (6s6p) 8P 5/2 to Sr (5s9d) 1D 2 have been observed in experiments. The relation between the breadth of spectral lines and the energy structures were analyzed experimentally and theoretically by two dipole dipole interactions.

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Chinese Journal of Lasers B

Observation of Single-slope Quasistatic Wings of Laser Induced Collision Energy Transfer

Liming Hu, Cheng Deying, Zao Xiaoyan, Zhiwei Lü, Zuguang Ma

Published Jan 1, 2001• 0 citations

OpenAlex

Abstract

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Chinese Physics LettersDec 19, 20011 citation

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{\mathit{p}}^{2}

{)}^{1}

{\mathit{D}}_{2}

final level.

Fluorescence of Li excited by laser light and simultaneous thermal

{\mathrm{Sr}}^{\mathrm{*}}

collisions in the reaction Sr(5p)+Li(2s)+\ensuremath{\Elzxh}\ensuremath{\omega} (\ensuremath{\lambda}=669.8 nm)\ensuremath{\rightarrow}Sr(5

{s}^{2}

)+Li(4d) shows an asymmetric excitation spectrum of the energy transfer versus \ensuremath{\lambda}. The peak variation with light intensity demonstrates the strong-field regime and verifies current models. A change in the slope of the quasistatic wing agrees with the result of a recent three-level model.

{\mathrm{}}^{8}

{\mathrm{P}}_{9/2}

and strontium 5

{\mathrm{s}}^{2}

{\mathrm{}}^{1}

{\mathrm{P}}_{1}

atoms. The transition was verified by measurement of the wavelength dependence in the quasistatic wings of the cw-laser--excited 4595.3-A\r{} line in Eu broadened by Sr ground-state atoms.