Accession Number : ADA267043


Title :   Nanosecond and Subnanosecond Investigations of Intrinsic Optical Limiting Mechanisms in Photorefractive and Semiconducting Materials


Descriptive Note : Final interim rept. 31 Mar 89-28 Jun 93,


Corporate Author : IOWA UNIV IOWA CITY CENTER FOR LASER SCIENCE AND ENGINEERING


Personal Author(s) : Smirl, A L ; Boggess, T F


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267043.pdf


Report Date : 28 Jun 1993


Pagination or Media Count : 105


Abstract : This program has been directed at exploring the fundamental physics underlying optical nonlinearities in a variety of materials, including semiconductors, organometallics, and photorefractive ferroelectrics, that have potential applications to eye and sensor protection. In addition, simple 'proof- of-principle' optical limiting devices have been demonstrated and analyzed. Specific materials have included GaAs and Si at 1.06 micrometers, and at 532 nm the semiconductor GaP, the organometallic compound known as King's complex, and the ferroelectric oxide BaTiO3. This document summarizes progress on the program, delineate; conclusions drawn from the research, provides recommendations for future research, and briefly describes research that will continue (until September 1995) on this contract under AASERT funding.


Descriptors :   *OPTICAL PROPERTIES , *COMPOSITE MATERIALS , *SEMICONDUCTORS , DETECTORS , NONLINEAR OPTICS , OXIDES , SILICON , EYE , BARIUM , MICROMETERS , GALLIUM PHOSPHIDES , TITANIUM OXIDES , FERROELECTRIC MATERIALS , PROTECTION , LIMITATIONS , PHYSICS , ORGANOMETALLIC COMPOUNDS , GALLIUM ARSENIDES , MATERIALS


Subject Categories : Organic Chemistry
      Laminates and Composite Materials
      Electricity and Magnetism
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE