Title :
Optical control of cubic nonlinearity in azo-polymer thin films
Author :
Chia Chen Hsu ; Churikov, V.M.
Author_Institution :
Dept. of Phys., Nat. Chung Cheng Univ., Chiayi, Taiwan
Abstract :
Optical controlled third harmonic generation in azo polymer thin films via one-or two-photon excitation is demonstrated. This effect is attributed to reversible change of third order susceptibility due to trans-to-cis isomerization of azo-bond molecules.
Keywords :
isomerisation; nonlinear optical susceptibility; optical films; optical harmonic generation; optical polymers; two-photon processes; azo-bond molecules; azo-polymer thin films; cubic nonlinearity; one-photon excitation; optical control; optically controlled third harmonic generation; reversible change; third order susceptibility; trans-to-cis isomerization; two-photon excitation; Absorption; Geometrical optics; Laser excitation; Nonlinear optics; Optical control; Optical films; Optical harmonic generation; Optical pumping; Polarization; Transistors;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.971135
