Inversionless amplification in a three-level medium
- 1 February 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 45 (3) , 1997-2005
- https://doi.org/10.1103/physreva.45.1997
Abstract
We study all possible resonant three-level configurations where a low-frequency coherent pump can be converted into a high-frequency field in the absence of population inversion at both atomic high-frequency transitions. We identify two different mechanisms that provide such inversionless amplification.Keywords
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