Two-photon gain and lasing in strongly driven two-level atoms Article

cited authors

  • Lewenstein, M; Zhu, Y; Mossberg, TW

fiu authors


  • 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. © 1990 The American Physical Society.

publication date

  • January 1, 1990

Digital Object Identifier (DOI)

start page

  • 3131

end page

  • 3134


  • 64


  • 26