Two mechanisms for inversionless amplification in four-level atoms with Raman pumping. Academic Article

abstract

• We analyze the physical origin of the inversionless amplification in four-level atoms driven by a Raman field and identify the existence of two different mechanisms for the predicted gain. The first mechanism is connected with the appearance of a population inversion between the atomic states dressed by the coherent pump, while the second is linked to the buildup of coherence among these states. Proper selection of the relaxation parameters can make either the first or the second mechanism dominant over the other although usually both coexist. 1993 The American Physical Society.

authors

• Kocharovskaya, Olga
• Scully, Marlan

published proceedings

• Phys Rev A

author list (cited authors)

• Keitel, C. H., Kocharovskaya, O. A., Narducci, L. M., Scully, M. O., Zhu, S., & Doss, H. M.

citation count

• 79

complete list of authors

• Keitel, CH||Kocharovskaya, OA||Narducci, LM||Scully, MO||Zhu, S||Doss, HM

publication date

• October 1993

publisher

• American Physical Society (APS)  Publisher

published in

• Physical Review A: Atomic, Molecular and Optical Physics  Journal

PubMed Central ID

• 9909973

Digital Object Identifier (DOI)

• 10.1103/physreva.48.3196

start page

• 3196

end page

• 3202

volume

• 48

issue

• 4

URL

• http://dx.doi.org/10.1103/physreva.48.3196