Quantum gain and absorption in two color three level V-atom: A dressed state picture

D. Braunstein, R. Shuker

Research output: Contribution to journalConference articlepeer-review


Light amplification without population inversion (L.W.I) and absorption with inversion driven by quantum coherent interferences in a closed three level V-type system is studied from the point of view of two color dressed state basis. Approximate analytic time dependent solutions, for coherences and population distribution are derived, and compared with full numerical solutions. Steady state quantities are also calculated, and the conditions under which the system exhibits gain with and without inversion, in the dressed state representation are derived. It is found that for a weak probe laser field light amplification without inversion may occur, for a range of system parameters, in both the bare and the dressed state representations.

Original languageEnglish
Pages (from-to)128-140
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 Jan 1999
EventProceedings of the 1998 Laser Optics '98: Solid State Lasers - St. Petersburg, RUS
Duration: 22 Jun 199826 Jun 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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