Accession Number : ADA308253

Title :   Nonlinear Optical Interactions and Materials.

Descriptive Note : Final rept. 6 Oct 92-5 Oct 95,

Corporate Author : ROCHESTER UNIV NY

Personal Author(s) : Boyd, Robert W. ; Fisher, George L.

PDF Url : ADA308253

Report Date : FEB 1996

Pagination or Media Count : 5

Abstract : Laboratory research has been performed to assess new materials for use in nonlinear optics. One aspect of this work involves the formation of composite materials. This work is motivated by recent theoretical predictions that composite materials can possess a nonlinear susceptibility exceeding those of its constituent materials. We verified this prediction by constructing a composite material formed of alternating layers of titanium dioxide and the conjugated polymer poly paraphenylene benzobisthiazole, and demonstrating that the composite possessed a third-order susceptibility 35% larger than that of the polymers its more nonlinear constituent. A second aspect of this work involved measuring the third order susceptibility of a family of related polymers. The results of these measurements provide insights into the relationship between the structure of polymers and the size of their optical nonlinearities. In the course of conducting this research, we developed a new design for the construction of Faraday isolators. This new Faraday isolator shows performance superior to that of conventional designs.

Descriptors :   *INTERACTIONS, *COMPOSITE MATERIALS, *NONLINEAR OPTICS, OPTICAL PROPERTIES, LABORATORY TESTS, PREDICTIONS, LAYERS, POLYMERS, ISOLATION, CONSTRUCTION, FARADAY EFFECT, TITANIUM DIOXIDE, ELECTROMAGNETIC SUSCEPTIBILITY.

Subject Categories : Laminates and Composite Materials
      Physical Chemistry
      Polymer Chemistry
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE