Expansion and cooling of a bright rubidium three-dimensional optical molasses

Laurence Pruvost, Isabelle Serre, Hong Tuan Duong, Joshua Jortner

Research output: Contribution to journalArticlepeer-review

Abstract

We have studied the expansion of a bright rubidium three-dimensional optical molasses realized with an intense laser light. In this regime, in addition to the laser friction force, the atoms strongly repel each other due to the radiation trapping force, which is analogous to the Coulomb force. The experimental observations show that the cloud volume increases linearly in time and that, simultaneously, the cloud temperature decreases following the law [Formula Presented] These time evolutions are explained using a physical picture of Coulomb explosion in a viscous medium.

Original languageEnglish
Pages (from-to)9
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume61
Issue number5
DOIs
StatePublished - 2000
Externally publishedYes

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