INTERACTION OF RADIATION WITH MATTER: Focusing of laser light outside a nonlinear crystal in second-harmonic generation with a pronounced energy exchange
Abstract
The change in the phase of the light at the fundamental frequency in the course of second-harmonic generation is examined theoretically. This is a self-effect mechanism which operates in a medium with a quadratic nonlinearity. An analytic expression is derived for this phase as a function of the length of the crystal, the energy density of the light, the nonlinearity of the crystal, and the wave detuning. A numerical simulation shows that this mechanism should be taken into account along with other self-effect mechanisms in many cases of practical importance.
- Publication:
-
Quantum Electronics
- Pub Date:
- October 1992
- DOI:
- 10.1070/QE1992v022n10ABEH003634
- Bibcode:
- 1992QuEle..22..933G