NONRESONANT 5TH-ORDER NONLINEARITIES INDUCED BY ULTRASHORT INTENSE PULSES

Authors
ARABAT J ETCHEPARE J
Citation
J. Arabat et J. Etchepare, NONRESONANT 5TH-ORDER NONLINEARITIES INDUCED BY ULTRASHORT INTENSE PULSES, Journal of the Optical Society of America. B, Optical physics, 10(12), 1993, pp. 2377-2382
Citations number
17
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. B, Optical physics → ACNP
ISSN journal
07403224
Volume
10
Issue
12
Year of publication
1993
Pages
2377 - 2382
Database
ISI
SICI code
0740-3224(1993)10:12<2377:N5NIBU>2.0.ZU;2-4
Abstract
We demonstrate the existence of chi(5) nonlinearities induced in a tra nsparent glass by intense femtosecond pulses at 620 nm. Polarization s electivity associated with a transient-grating technique allows us to discriminate this contribution from the electronic third-order one. A value of 5 is measured for the ratio between symmetric and nonsymmetri c elements for this fifth-order susceptibility. This value corresponds to the expected value deduced from the anharmonic model presented and is definitely attributed to a direct six-wave mixing process.