Abstract

The complex coupling constant of a photorefractive polymer was measured as a function of an applied electric field by use of a modified ac phase modulation technique. We determined that both a photorefractive index grating and a nonphotorefractive absorption grating were present. The electric field dependencies of the amplitude and the phase of the photorefractive gain coefficient were accurately described by standard photorefractive theory. The accuracy of the photorefractive phase shift as measured by this phase-modulation technique was $\pm 1°$ near phase shifts of 90° and $\pm 3°$ near phase shifts of 45°.

© 1998 Optical Society of America

Two-beam coupling measurements of grating phase in a photorefractive polymer

C. A. Walsh and W. E. Moerner
J. Opt. Soc. Am. B 9(9) 1642-1647 (1992)

Photoconductivity and grating response time of a photorefractive polymer

Brian E. Jones, Stephen Ducharme, Martin Liphardt, Arosha Goonesekera, James M. Takacs, Lei Zhang, and Rajan Athalye
J. Opt. Soc. Am. B 11(6) 1064-1072 (1994)

Systematics of two-wave mixing in a photorefractive polymer

A. Grunnet-Jepsen, C. L. Thompson, and W. E. Moerner
J. Opt. Soc. Am. B 15(2) 905-913 (1998)

High-performance polysiloxane-based photorefractive polymers with nonlinear optical azo, stilbene, and tolane chromophores

S. Schloter, U. Hofmann, P. Strohriegl, H.-W. Schmidt, and D. Haarer
J. Opt. Soc. Am. B 15(9) 2473-2475 (1998)

Photoconductivity studies of photorefractive polymers

J. C. Scott, L. Th. Pautmeier, and W. E. Moerner
J. Opt. Soc. Am. B 9(11) 2059-2064 (1992)