Positive and negative dispersion in a three-level Λ system driven by a single pump

A. D. Wilson-Gordon, H. Friedmann

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

We extend our previous study of a nearly degenerate Λ three-level system that exhibits population trapping when driven by a single pump and produces an absorption or gain doublet in the probe absorption spectrum. In particular, we show that the probe dispersion is positive or negative between the doublet lines, and can survive Doppler broadening. For certain values of the pump Rabi frequency, the sign of the dispersion can be changed by altering the ratio of the splitting between the lower levels to the Doppler width.

Original languageEnglish
Pages (from-to)125-139
Number of pages15
JournalJournal of Modern Optics
Volume49
Issue number1-2
DOIs
StatePublished - 15 Jan 2002

Bibliographical note

Funding Information:
This research was supported by the Israel Science Foundation.

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