Emission spectrum for polar super rotors in a cold buffer gas

被引：5

作者：

Forrey, RC ^{[1
]}

机构：

[1] Penn State Univ, Berks Lehigh Valley Coll, Reading, PA 19610 USA

来源：

EUROPEAN PHYSICAL JOURNAL D | 2004年 / 31卷 / 02期

关键词：

D O I：

10.1140/epjd/e2004-00101-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Rate coefficients for cold and ultracold He+CO collisions are used together with radiative lifetimes to investigate the relaxation of rotationally hot polar molecules in the presence of a cold or ultracold helium buffer gas. Starting with an initial Gaussian distribution of highly excited rotational states, such as might be produced by an optical centrifuge, the time-dependent relaxation of a collection of super rotors is studied and in the case of CO an emission spectrum which contains the collisional information is predicted as a function of buffer gas density. Implications for the experimental detection of cold and ultracold quasiresonant atom-diatom scattering is discussed.

引用

页码：409 / 415

页数：7

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