Thesis (Ph.D.)--George Mason University, 2008. / Vita: p. 156. Thesis director: Mulpuri V. Rao. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering. Title from PDF t.p. (viewed Jan. 11, 2009). Includes bibliographical references (p. 149-155). Also issued in print.

Thesis--University of Florida. / Description based on print version record. Typescript. Vita. Bibliography: leaves 225-226.

Some novel optical methods to study the structure of ordered latices have been developed. These methods, as well as the Bragg diffraction technique, have been used in rheo- and electro-optical studies of latex structure. In the rheo-optical studies, ordered latices were subjected to a simple shear field and a three-dimensional deformation of the structure was observed. The increase in spacing between parallel layers of particles is qualitatively explained by a proposed two-dimensional sliding layer model. In the electro-optical studies, ordered latices were subjected to an electric field and an asymmetrical particle distribution was found. The electric field effect was found to be large for low volume fractions and low ion concentrations. These dependencies are explained semi-quantitatively by a proposed model. / A widely used equation describing the optical condition of diffraction in ordered latices was reconsidered and given a firm theoretical basis.

No description available.

The subject of this dissertation is an electro-optical processing (EOP) concept which, in its basic configuration, computes a discrete linear transform such as Fourier, Laplace, Hilbert, etc., as well as convolutions and correlations. It accepts input signals through an incoherent light source, performs high speed analog multiplications via a two-dimensional array of apertures in a chrome mask on the surface of a charge-coupled device (CCD), shifts and integrates intermediate results within the CCD, and presents the transformed signal as a data stream from the output shift register of the CCD. The EOP concept is described in detail where both serial and parallel configurations are developed. It is seen to be an efficient computer of matrix-vector products, matrix-matrix products, and multichannel correlations. The inclusion of feedback and a changeable CCD mask yields an architecture for higher order matrix operations such as matrix inversion, solution of simultaneous equations, etc. A functional model of an EOP matrix-vector multiplier is presented which describes the accumulated effect of errors in system elements from the LED through the CCD. Also described is removal of error introduced by biasing required of input and mask modulation functions in order that they represent bipolar quantities. An EOP spectrum analyzer based upon direct implementation of the discrete Fourier transform (DFT) is described and use of a Kaiser-Bessel window function applied to the CCD mask is described as a solution to the "spectral leakage" problem caused by sharp discontinuities at each end of a normal window of sampled data. Finally, application of a parallel EOP configuration to the synthetic aperture radar (SAR) problem is offered. An architecture utilizing separate in-phase and quadrature EOP channels is described. The system shows potential for providing at least modest resolution SAR imagery with an economy of size, weight, and power consumption.

Thesis (M.S.)--Brigham Young University. Dept. of Electrical and Computer Engineering, 2003. / Includes bibliographical references (p. 89-91).

Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 130-138).

No description available.

No description available.

Thesis (doctoral)--Technische Universität München, 2005. / Includes bibliographical references (p. 243-249).