Anomalous Doppler-Effect and Polariton-Mediated Cooling of Two-Level Atoms

P. Domokos, A. Vukics, Helmut Ritsch

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

An atom moving in a near resonant laser field with its dipole strongly coupled to a resonator field mode was analyzed. A substantially different and counterintuitive linear velocity dependence of the light scattering properties was found, as compared to the standard Doppler shift. It was shown that the mechanical force of the laser field exhibited strong velocity selectivity at a polariton resonance, which gives rise to an enhanced friction force and Doppler cooling. The results show that this effect allows for sub-Doppler cooling of atoms even with a nondegenerate ground state.

Original languageEnglish
Pages (from-to)103601
Number of pages1
JournalPhysical Review Letters
Volume92
Issue number10
DOIs
Publication statusPublished - Mar 12 2004

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Doppler effect
polaritons
cooling
lasers
atoms
light scattering
friction
selectivity
resonators
dipoles
ground state
shift

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Anomalous Doppler-Effect and Polariton-Mediated Cooling of Two-Level Atoms. / Domokos, P.; Vukics, A.; Ritsch, Helmut.

In: Physical Review Letters, Vol. 92, No. 10, 12.03.2004, p. 103601.

Research output: Contribution to journalArticle

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