Two-photon gain and lasing in strongly driven two-level atoms
Journal Article
·
· Physical Review Letters; (USA)
- Institute for Theoretical Physics, Polish Academy of Sciences, 02-668 Warsaw (Poland)
- Department of Physics, University of Oregon, Eugene, OR (USA)
Driven two-level atoms are shown to exhibit strong, resonantly enhanced, two-photon gain. This gain, unlike that observed in nonlinear mixing processes, is not constrained by a phase-matching condition involving the pump beam. Physically, the gain can be associated with inverted two-photon transitions between dressed states or multiphoton stimulated Raman scattering, and it may be useful in the realization of a two-photon laser. Comparison with the well-known single-photon gain found in the same system is made.
- OSTI ID:
- 6376682
- Journal Information:
- Physical Review Letters; (USA), Vol. 64:26; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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