Abstract
Stimulated and enhanced two-photon emissions from excited states in potassium have been observed. This emission is primed by stimulated electronic Raman radiation generated by scattering of a giant pulse ruby radiation. Four-photon parametric processes also take place. The two processes can be distinguished by tuning the laser frequency, Most of the emitted radiations are plane-polarized. A pumping model is proposed explaining the required population inversions and the polarization properties of the radiations.
| Original language | English |
|---|---|
| Pages (from-to) | 448-453 |
| Number of pages | 6 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 5 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 1969 |