Abstract
The polarization spectrum of a two-level atom driven by a symmetrical bichromatic pump field is examined. It is shown that the heterodyne parametric four-wave interactions result in the amplification of a weak probe field without population inversion at the line center in a wide range of pump and probe field intensities. (C) 1999 Published by Elsevier Science B.V.
| Original language | English |
|---|---|
| Pages (from-to) | 142-147 |
| Number of pages | 6 |
| Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Volume | 264 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 1999 Dec 20 |
| Externally published | Yes |
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Keywords
- Amplification without population inversion
- Bichromatic pump field
- Two-level atom
- Two-photon emission
ASJC Scopus subject areas
- Physics and Astronomy(all)