Abstract

Simultaneous writing and probing of photoinduced second-order susceptibility ${\chi }^{\left(2\right)}$ in an azo-dye polymer thin film is demonstrated. The method is based on the fact that tensor properties of ${\chi }^{\left(2\right)}$ provide different planes of polarization for seeding and signal second harmonics. Our technique allows the ${\chi }^{\left(2\right)}$ value to be monitored in real time, completely eliminating the distortion of optical poling that can occur in traditional probing configurations. The possibility of attaining high values of ${\chi }^{\left(2\right)}$ in a DR1-PMMA guest–host system under low seeding intensities is shown.

© 2000 Optical Society of America

All-optical induction of noncentrosymmetry in a transparent nonlinear polymer rod

Céline Fiorini, Fabrice Charra, Paul Raimond, André Lorin, and Jean-Michel Nunzi
Opt. Lett. 22(24) 1846-1848 (1997)

Photoinduction of surface-relief gratings during all-optical poling of polymer films

Aleksandra Apostoluk, Jean-Michel Nunzi, and Céline Fiorini-Debuisschert
Opt. Lett. 29(1) 98-100 (2004)

Modified theory of photoinduced molecular polar alignment in azo polymers

Gang Xu, Xuchun Liu, Jinhai Si, Peixian Ye, Zhao Li, and Yuquan Shen
Opt. Lett. 25(5) 329-331 (2000)

Quasi-permanent all-optical encoding of noncentrosymmetry in azo-dye polymers

Céline Fiorini, Fabrice Charra, Jean-Michel Nunzi, and Paul Raimond
J. Opt. Soc. Am. B 14(8) 1984-2003 (1997)

Polymer-based microcavity with photoencoded quadratic nonlinearity

R. Piron, E. Toussaere, D. Josse, S. Brasselet, and J. Zyss
Opt. Lett. 25(17) 1255-1257 (2000)