New photorefractive polymer based on multifunctional polyurethane

Y. M. Chen, Z. H. Peng, W. K. Chan, L. P. Yu

doi:10.1063/1.110887

New photorefractive polymer based on multifunctional polyurethane

DOI PDF 被引用文献1件

Y. M. Chen

Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637
Z. H. Peng

Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637
W. K. Chan

Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637
L. P. Yu

Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637

説明

<jats:p>A new photorefractive polymer containing a photocarrier generator, a hole transporting compound, and a nonlinear optical chromophore covalently linked to the polymer backbone has been synthesized. Two-beam coupling experiments have clearly demonstrated asymmetric energy exchange under zero-field condition, a sign for photorefractivity and a maximum optical gain of 0.88 cm−1 was measured. Although it is not a net gain, the result reported here demonstrates the feasibility of rational designs of photorefractive polymers.</jats:p>