PHASE-MISMATCHED DEGENERATE 4-WAVE-MIXING - COMPLEX 3RD-ORDER SUSCEPTIBILITY TENSOR ELEMENTS OF C-60 AT 768 NM

Citation
Fp. Strohkendl et al., PHASE-MISMATCHED DEGENERATE 4-WAVE-MIXING - COMPLEX 3RD-ORDER SUSCEPTIBILITY TENSOR ELEMENTS OF C-60 AT 768 NM, Journal of the Optical Society of America. B, Optical physics, 14(1), 1997, pp. 92-98
Citations number
14
Categorie Soggetti
Optics
ISSN journal
07403224
Volume
14
Issue
1
Year of publication
1997
Pages
92 - 98
Database
ISI
SICI code
0740-3224(1997)14:1<92:PD4-C3>2.0.ZU;2-T
Abstract
We describe and analyze an ah-optical method to measure bath the magni tude and the phase of each (complex) element of the chi((3)) tensor th at determines degenerate four-wave mixing in a thin isotropic film on a thick substrate. me use the method to characterize the chi((3)) tens or of a 10-mu m C-60 film (on a CaF2 substrate) for 110-fs pulses at 7 68 nm. Using a fused-quartz plate as the nonlinear standard, we find t he two independent Maker-Terhune elements of chi((3)) to have magnitud es \c(1221)(-omega, omega, omega, -omega)\ = (0.44 +/- 0.03) X 10(-12) esu and \c(1122)(-omega, omega, omega, -omega)\ = (0.50 +/- 0.03) X 1 0(-12) esu and phase angles phi(1221) and phi(1122), whose magnitudes are 145 degrees +/- 17 degrees and 139 degrees +/- 10 degrees. (C) 199 7 Optical Society of America.