Group-velocity self-matching of femtosecond pulses in noncollinear parametric generation
Abstract
We show that the parametric superfluorescence generated by a 200-fs pulse at 0.6 μm in a β-barium borate crystal occurs in directions, and at wavelengths, that minimize the group-velocity mismatch between pump and generated pulses. Favorable conditions for generation of tunable femtosecond pulses are found in noncollinear phase matching, a geometry of interaction which is worth exploiting in parametric devices.
- Publication:
-
Physical Review A
- Pub Date:
- April 1995
- DOI:
- 10.1103/PhysRevA.51.3164
- Bibcode:
- 1995PhRvA..51.3164D
- Keywords:
-
- 42.65.Ky;
- 42.60.-v;
- 42.79.Nv;
- 42.25.Md;
- Frequency conversion;
- harmonic generation including higher-order harmonic generation;
- Laser optical systems: design and operation;
- Optical frequency converters