Abstract
A four-level atom, driven by a coherent field, is considered. We show that under certain conditions complete quenching of spontaneous emission is possible. Hence the population inversion on some specific atomic transitions can be created using a very weak incoherent pumping. We investigate the physics of the effect using bare and dressed states. The proposed scheme may be useful, in principle, for generation of high-frequency and/or high power laser light.
| Original language | English |
|---|---|
| Pages (from-to) | 4454-4465 |
| Number of pages | 12 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 55 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 1997 |
Scopus Subject Areas
- Atomic and Molecular Physics, and Optics