Observation of population trapping in a two-photon resonant three-level atom

Matti Kaivola*, Nis Bjerre, Ove Poulsen, Juha Javanainen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)


We report narrow structures observed in the population of the intermediate level of a two-photon transition in a fast beam of metastable 20Ne* atoms. Steady-state theory provides a description of two coherent processes leading to population trapping. Both processes proceed via the ordinary two-photon coherence. One is then completed with a reversed-time ordering of the last two interactions, leading to a dispersive variation of the population of the real intermediate level, the other creates a hole in this population. A narrow Doppler profile enhances the visibility of these processes.

Original languageEnglish
Pages (from-to)418-422
Number of pages5
JournalOptics Communications
Issue number6
Publication statusPublished - 15 Apr 1984
MoE publication typeA1 Journal article-refereed


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