6533b827fe1ef96bd1285dd5
RESEARCH PRODUCT
Efficient energy conversion for cubic third-harmonic generation that is phase matched in KTiOPO(4).
Benoît BoulangerY. GuillienJ.p. Fevesubject
Sum-frequency generationMaterials sciencebusiness.industryEnergy conversion efficiencyPhase (waves)Second-harmonic generationLaserAtomic and Molecular Physics and Opticslaw.inventionOpticslawPicosecondDispersion (optics)businessGaussian beamdescription
We demonstrate, for the first time to our knowledge, that efficient third-harmonic generation can be achieved with a cubic contribution much larger than the quadratic processes. An energy-conversion efficiency of 2.4% is achieved for cubic third-harmonic generation that is phase matched along the x axis of a KTiOPO(4) crystal by use of a picosecond fundamental laser emitting at 1618 nm. The associated cascading processes are only 10% of the pure cubic interaction, which is very suitable for study of the specific quantum optical correlations. Calculations of the third-harmonic generation conversion efficiency with respect to group-velocity dispersion and to the longitudinal Gaussian beam profile account well for our experimental results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-09-15 | Optics letters |