Abstract
This Letter reports the first experimental observation of population inversion of a two-photon transition in NH3 using the adiabatic rapid-passage technique. The population inversion was demonstrated by the observation of stimulated two-photon gain and emission. By use of this technique, the two-photon population relaxation time T1 was measured.
| Original language | English |
|---|---|
| Pages (from-to) | 473-476 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 41 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1978 |
| Externally published | Yes |