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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Laser induced fluorescence line narrowing studies of praseodymium in lanthanum trifluoride and application of pressure scanning to the tuning of a high resolution dye laser

Flach, Robert, January 1976 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references.
92

Electrical noise in GaAs diode lasers

Royt, Terry Robert, January 1969 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1969. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
93

Dye laser studies of pulsed high pressure gas discharges

Lawler, James Edward. January 1978 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 115-118).
94

Laser probing of excited CO products from shock wave initiated oxidation of carbon disulfide

Dibble, Robert W. January 1975 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 104-110.
95

Chemical laser studies of elementary chemical reactions

Bittenson, Steven Noel. January 1900 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 346-352).
96

Polarization effects in photon echoes and in an anisotropic laser cavity.

Kohl, Ronald Harry, January 1972 (has links)
Thesis (Ph. D.)--Ohio State University, 1972. / Includes bibliographical references. Available online via OhioLINK's ETD Center
97

Experimental investigation of laser enhancement of single-bubble sonoluminescence /

Cao, Guohua. January 2005 (has links)
Thesis (Ph.D.)--Brown University, 2005. / Vita. Thesis advisor: Gerald J. Diebold. Includes bibliographical references (leaves 135-139). Also available online.
98

Supermode Si/III-V lasers and circular Bragg lasers

Sun, Xiankai. Yariv, Amnon. Atwater, Harry A. January 1900 (has links)
Thesis (Ph. D.) -- California Institute of Technology, 2010. / Title from home page (viewed 06/21/2010). Advisor and committee chair names found in the thesis' metadata record in the digital repository. Includes bibliographical references.
99

Coupling of a semiconductor laser to a single-mode fiber /

Yu, Nu, January 1987 (has links)
Thesis (M.S.)--Oregon Graduate Center, 1987.
100

Optical and mass spectrometric studies of microwave discharges

Hewitt, Janet A. January 1986 (has links)
The structure, operation and performance characteristics of the TR cell and its role in microwave duplexing in a radar system are discussed. Theory of the microwave discharge is discussed, and the mathematics of microwave transmission along a waveguide examined. Two computer models are established; one to model the transfer of heat from the microwave discharge in the cell to the cell window, and one to model the operation of the TR cell, in terms of the reaction kinetics of the gases within. The results of both models are compared with experimental observations. Finally, the gas in the cell is analysed throughout the manufacturing procedure of the cell and during its operation. Study of the mathematics of microwave transmission along a waveguide leads to expressions for the conductivity, and reflection and transmission coefficients for an ionized gas, resulting in calculations of the electron density in the ionized gas as a function of input power. A computer program to model the heat transfer from the microwave discharge in the TR cell to the cell window has been written. Good agreement with experimental results has been obtained. The temperatures at selected points on the TR cell window, frame and flange are calculated, using the finite difference method. The power incident on the window is input to the program together with the window dimensions and materials selected. The output from the program is in the form of temperatures at selected points across the TR cell window, frame and flange. The temperature at which a window is likely to fail is estimated from the results of the program. Three different techniques are used in the analysis of the gas in the TR cell during its manufacture and operation. They are the study of relative changes in peak heights in the microwave-excited optical emission spectrum of the gas, using an optical spectrum analyser with a recording facility, measurement of the performance of the cell when subject to high power microwave pulses and finally, mass spectrometry of the gases in the cell. Several batches of cells were studied. Using the results from these different analytical techniques, the manufacturing procedure and the operation of the cell are discussed. The batch of cells analysed using mass spectrometry contained traces of oxides of carbon and nitrogen, which were shown to have a negative influence on the performance of the cells. Finally, a computer model of the operation of the TR cell is established. The reaction rates and cross sections of the species likely to be present are calculated from the available literature. The model predicts the number densities of the species present as a function of the operating time of the cell and is used to predict the useful lifetime of the cell. The partial success of the model is due in part to the scarcity of reaction rate data for the microwave discharge.

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