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Investigations in silicate glasses. I. Radiation damage. II. Optical nonlinearity. [Gamma rays and electrons]

Description: The investigation of two poorly understood but technologically important physical properties of silicate glasses and related materials is described. The use of Electron Paramagnetic Resonance to investigate the nature of radiation-induced damage in glasses exposed to a variety of high-energy radiation sources is discussed first. Second, the measurement of the nonlinear index of refraction coefficient in a variety of optical materials related to the design of high-power laser systems is describe… more
Date: November 15, 1976
Creator: Moran, Michael James
Partner: UNT Libraries Government Documents Department
open access

Design and Scale Model Test Results of a Severely Modified Rao Contour Nozzle

Description: This thesis describes the design, selection and scale model test results of a contour design for a convectively-cooled, ground test nozzle extension which originates at an area ratio of 5:1 (termination point of main nozzle).
Date: November 15, 1971
Creator: Coppo, R. H.
Partner: UNT Libraries Government Documents Department
open access

Theoretical studies of some nonlinear laser-plasma interactions

Description: The nonlinear coupling of intense, monochromatic, electromagnetic radiation with plasma is considered in a number of special cases. The first part of the thesis serves as an introduction to three-wave interactions. A general formulation of the stimulated scattering of transverse waves by longitudinal modes in a warm, unmagnetized, uniform plasma is constructed. A general dispersion relation is derived that describes Raman and Brillouin scattering, modulational instability, and induced Thomson s… more
Date: August 15, 1975
Creator: Cohen, B.I.
Partner: UNT Libraries Government Documents Department
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