Interaction of a sequence of frequency-chirped bichromatic laser pulses with an ensemble of A-atoms: Population trapping and coherent optical pumping

G. Djotyan, J. Bakos, P. Ignácz, Zs Sörlei, J. Szigeti, Z. Tóth

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We show that population trapping may be achieved in an ensemble of Doppler-broadened three-level A-atoms when acting by a few frequency-chirped bichromatic laser pulses (BLPs) with duration longer than the decay time of the excited state of the atoms. The action of successive sequence of short frequency-chirped laser pulses on such a prepared atomic ensemble results in coherent optical pumping of atoms into a single ground state. A reversible population transfer between two ground states of the atoms through an intermediate specific distribution of populations between the atomic states is shown to be produced by a sequence of frequency-chirped short BLPs.

Original languageEnglish
Pages (from-to)355-359
Number of pages5
JournalLaser Physics
Volume10
Issue number1
Publication statusPublished - Jan 1 2000

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Industrial and Manufacturing Engineering

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