DocumentCode
1300007
Title
Nonlinear refractive indices of polystyrene films doped with azobenzene dye Disperse Red 1
Author
Mendonca, C.R. ; Costa, Maxwell M. ; Giacometti, J.A. ; Nunes, Fernando D. ; Zilio, S.C.
Author_Institution
Dept. de Fisica e Ciencia dos Mater., Sao Paulo Univ.
Volume
34
Issue
1
fYear
1998
fDate
1/8/1998 12:00:00 AM
Firstpage
116
Lastpage
117
Abstract
Nonlinear refractive indices of polystyrene films containing azobenzene dye Disperse Red 1 (DR1) have been measured as a function of wavelength using the single beam Z-scan technique with a Fourier analysis of the transmittance time evolution. Although the C.W. excitation is carried out far from the absorption resonance region, the large nonlinear optical response has its origin in a thermal effect. We were able to find the thermal diffusivity coefficient of the sample
Keywords
Fourier analysis; nonlinear optics; polymer films; refractive index; Disperse Red 1; Fourier analysis; azobenzene dye; nonlinear optical response; nonlinear refractive indices; polystyrene films; single beam Z-scan technique; thermal diffusivity coefficient; thermal effect; transmittance time evolution;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19980010
Filename
654559
Link To Document