Laser-pulse photoassociation in a thermal gas of atoms

Emanuel F. De Lima, Tak San Ho, Herschel Albert Rabitz

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Abstract

A nonperturbative treatment is presented for laser-pulse-driven formation of heteronuclear diatomic molecules in a thermal gas of atoms. Based on the assumption of full controllability, the maximum possible photoassociation yield is obtained. A one-dimensional model is used for calculating the photoassociation probability as a function of the laser parameters as well as for different temperatures. The dependence of the photoassociation yield on the laser frequency and amplitude reveals complex patterns of one- and multiphoton transitions. The photoassociation yield induced by subpicosecond pulses of a priori fixed shape is very low compared to the maximum possible yield.

Original languageEnglish (US)
Article number063417
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume78
Issue number6
DOIs
StatePublished - Dec 19 2008

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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