3RD-ORDER NONLINEAR-OPTICAL SUSCEPTIBILITIES OF THE LANGMUIR-BLODGETT-FILMS OF OCTA-SUBSTITUTED METALLOPHTHALOCYANINES

Authors
DIAZGARCIA MA CABRERA JM AGULLOLOPEZ F DURO JA DELATORRE G TORRES T FERNANDEZLAZARO F DELHAES P MINGOTAUD C
Citation
Ma. Diazgarcia et al., 3RD-ORDER NONLINEAR-OPTICAL SUSCEPTIBILITIES OF THE LANGMUIR-BLODGETT-FILMS OF OCTA-SUBSTITUTED METALLOPHTHALOCYANINES, Applied physics letters, 69(3), 1996, pp. 293-295
Citations number
24
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
69
Issue
3
Year of publication
1996
Pages
293 - 295
Database
ISI
SICI code
0003-6951(1996)69:3<293:3NSOTL>2.0.ZU;2-2
Abstract
The third-order susceptibilities chi((3))(-3 omega:omega,omega,omega) of Langmuir-Blodgett films of a series of octasubstituted metallophtha locyanines have been measured by third-harmonic generation experiments at 1.064 and 1.904 mu m. For the latter excitation wavelength a marke d enhancement of the nonlinearity for the cobalt-containing compound h as been found, and chi((3)) values are one order of magnitude larger t han for the other systems. The effect has been associated to the role of two-photon allowed metal (possibly d-d) transitions in the cobalt d erivative. (C) 1996 American Institute of Physics.