LARGE NEAR-RESONANCE 3RD-ORDER NONLINEARITY IN AN AZOBENZENE-FUNCTIONALIZED POLYMER FILM

Authors
RANGELROJO R YAMADA S MATSUDA H YANKELEVICH D
Citation
R. Rangelrojo et al., LARGE NEAR-RESONANCE 3RD-ORDER NONLINEARITY IN AN AZOBENZENE-FUNCTIONALIZED POLYMER FILM, Applied physics letters, 72(9), 1998, pp. 1021-1023
Citations number
15
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
72
Issue
9
Year of publication
1998
Pages
1021 - 1023
Database
ISI
SICI code
0003-6951(1998)72:9<1021:LN3NIA>2.0.ZU;2-8
Abstract
The third-order nonlinear optical response of a thin film containing t he azobenzene dye Disperse Red 1 was studied using the z-scan techniqu e with tunable picosecond pulses. A nonlinear refractive index of -5.0 cm(2)/GW, corresponding to a Re chi((3))=-3.0x10(-15) m(2)/V-2 (2.1x1 0(-7) esu), has been measured at 570 nm. The observed nonlinearity is attributed to the change in refractive index induced by the trans-cis transition in the dye molecule. (C) 1998 American Institute of Physics .