Abstract
We present an experimental and theoretical investigation of the weak probe amplification in a cold and optically thick atomic cloud that is highly driven by a strong pump laser. We find that for high optical densities the probe amplification is strongly saturated. We compare our saturation measurements with a model based on dressed-atom population equalization due to re-scattering of spontaneous emission. Good agreement between theory and experiment is obtained only when corrections due to multiple scattering are included.
| Original language | English |
|---|---|
| Pages (from-to) | 467-473 |
| Number of pages | 7 |
| Journal | European Physical Journal D |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1999 |
| Externally published | Yes |