Accession Number : ADA297622

Title :   Materials Physics - Work Unit 2300/FF/05.

Descriptive Note : Final rept. 1991-1995,

Corporate Author : FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY CO

Personal Author(s) : Ranon, Peter M.

PDF Url : ADA297622

Report Date : 1995

Pagination or Media Count : 107

Abstract : This task addressed basic research to better understand laser ablation deposition of thin films, nonlinear optical (NLO) effects in poled quartz, and the waveguiding properties of Ge doped silica planar waveguides. These efforts expanded the understanding of the interaction between light and matter and thus advanced the envelope of the technology base of NLO materials used in optical device applications. Research directly supported Air Force Objectives for Optoelectronic Materials, as outlined in the current research Technology Area Plan for Project 2305, Electronics. The research was organized around the following areas: (1) laser ablation deposition of thin films, (2) NLO effects in poled quartz, and (3) the waveguiding properties of Ge doped silica planar waveguides. For the laser ablation effort, various techniques were used to investigate the optical losses and the properties of the laser ablation films. For NLO effects in poled quartz, two possible sources of SHO, which are the non-bridging oxygen hole centers (associated with Si and Ge) and peroxy bridge structures were found to be supported by experimental evidence. Through ion implantation which creates an internal poling field in quartz, second order NLO effects were introduced into otherwise amorphous films. For the waveguiding properties of Ge doped silica planar waveguides, credibility of computation efforts were increased significantly with high degree of correlation between experiment and theoretical predictions. Results for these topics are summarized in the next several sections. (MM)

Descriptors :   *ELECTROOPTICS, *THIN FILMS, *NONLINEAR OPTICS, *LASERS, ABLATION, OPTICAL PROPERTIES, ANNEALING, AIR FORCE, OPTICAL MATERIALS, AMORPHOUS MATERIALS, GLASS, ION IMPLANTATION, DEPOSITION, OPTICAL WAVEGUIDES, FUSED SILICA, DOPING, GERMANIUM, HARMONIC GENERATORS.

Subject Categories : Lasers and Masers
      Electrooptical and Optoelectronic Devices
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE