Title :
Remarkable photoinduced reversible change of third harmonic generation in azo-dye polymer thin films
Author :
Churikov, V.M. ; Chia Chen Hsu
Author_Institution :
Dept. of Phys., Nat. Chung Cheng Univ., Tainan, Taiwan
Abstract :
We observed appreciable decrease of third harmonic generation in disperse red 1 doped PMMA thin film exposed to frequency doubled and fundamental radiation of Nd:YAG laser. This effect is attributed to reversible change of third order susceptibility due to trans-to-cis isomerization.
Keywords :
dyes; isomerisation; nonlinear optical susceptibility; optical films; optical harmonic generation; optical polymers; Nd:YAG laser; YAG:Nd; YAl5O12:Nd; azo-dye polymer thin films; disperse red 1 doped PMMA thin film; frequency doubled; fundamental radiation; remarkable photoinduced reversible change; reversible change; third harmonic generation; third order susceptibility; trans-to-cis isomerization; Absorption; Frequency conversion; Integrated optics; Nonlinear optics; Optical attenuators; Optical films; Optical harmonic generation; Optical refraction; Optical variables control; Polymer films;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 2000. Technical Digest
Conference_Location :
Kaua´i-Lihue, HI, USA
Print_ISBN :
1-55752-646-X
DOI :
10.1109/NLO.2000.883621
