Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1982. / Vita. Abstract. Includes bibliographical references (leaves 211-219). Also available via the Internet.

by Ho Hing Wa. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references. / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgment --- p.iv / Table of Contents --- p.v / Chapter 1 --- Introduction / Chapter 1.1 --- Background of optical generation of millimeter-waves --- p.1 -1 / Chapter 1.2 --- Application of the two-section DFB laser on optical generation of millimeter-waves --- p.1 -4 / Chapter 1.3 --- Analysis --- p.1-4 / Chapter 1.4 --- Organization of Thesis --- p.1 -5 / References --- p.1-6 / Chapter 2 --- Techniques of Optical Generation of Millimeter-waves / Chapter 2.1 --- Direct modulation and mode-locking of lasers --- p.2-1 / Chapter 2.2 --- Beating of two optical waves --- p.2-3 / References --- p.2-11 / Chapter 3 --- Experimental Results and Discussions / Chapter 3.1 --- Device structure and experimental setup --- p.3-1 / Chapter 3.2 --- Light-Current Characteristics of the two-section laser --- p.3-3 / Chapter 3.3 --- Spectral behaviours of the two-section DFB laser --- p.3-5 / Chapter 3.3.1 --- Linewidth of the two-section DFB laser --- p.3-5 / Chapter 3.3.2 --- Wavelength tuning of the two-section DFB laser --- p.3-5 / Chapter 3.3.3 --- Biasing conditions for the dual-mode oscillations --- p.3-16 / Chapter 3.4 --- Optical generation of millimeter-waves --- p.3-17 / Chapter 3.4.1 --- Mechanism of beating --- p.3-17 / Chapter 3.4.2 --- Generation of millimeter-waves by optical beating --- p.3-20 / Chapter 3.5 --- Optical Transmission of the millimeter-waves --- p.3-22 / References --- p.3-24 / Chapter 4 --- Theory of DFB Laser / Chapter 4.1 --- Development of DFB laser --- p.4-1 / Chapter 4.2 --- Structure of DFB laser --- p.4-2 / Chapter 4.3 --- Model of one-section DFB laser --- p.4-4 / Chapter 4.4 --- Analysis of two-section DFB laser --- p.4-10 / Chapter 4.4.1 --- Introduction of transfer matrix method --- p.4-11 / Chapter 4.4.2 --- Formulation of transfer matrix --- p.4-12 / Chapter 4.4.3 --- Application of the transfer matrix --- p.4-13 / References --- p.4-17 / Chapter 5 --- Numerical Analysis of the Spectral Behaviours of the Two-Section DFB Laser / Chapter 5.1 --- Solving the Transcendental Equation --- p.5-1 / Chapter 5.2 --- Simulation of the spectral behaviour of the two-section DFB laser --- p.5-4 / Chapter 5.2.1 --- Assumptions and Approximations --- p.5-4 / Chapter 5.2.2 --- Parameters --- p.5-5 / Chapter 5.2.3 --- Computer Implementation --- p.5-6 / Chapter 5.2.4 --- Results and Discussion --- p.5-7 / References --- p.5-14 / Chapter 6 --- Conclusion / Chapter 6.1 --- Summary --- p.6-1 / Chapter 6.2 --- Future works --- p.6-2 / Appendices / Appendix A Source code for simulation of spectral behaviours of the two-section DFB laser --- p.A-1

Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Dr. Joy Laskar; Committee Member: Dr. Chang- Ho Lee; Committee Member: Dr. Federico Bonetto; Committee Member: Dr. John D. Cressler; Committee Member: Dr. John Papapolymerou; Committee Member: Dr. Linda S. Milor. Part of the SMARTech Electronic Thesis and Dissertation Collection.

Huang Yong. / "May 2004." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.

Thesis (M.S.)--University of Wisconsin--Madison, 1981. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 109-110).

This thesis describes the design, construction and results of an accurate, 73 GHz, dual-polarized atmospheric propagation experiment conducted over a 1.8 km total length radar path. The millimetre-wave equipment consisted of a switched-polarization transmitter and a two-channel receiving system which included a phase-compensated crosspolar cancellation network and a novel, high-performance microstrip IF/LO diplexer. Meteorological instrumentation consisted of an improved electrostatic disdrometer, a raingauge network with high temporal and spatial resolution and a three-vector anemometer. A comprehensive experimental model was developed to predict the system crosspolar discrimination (XPD) response during a wide variety of conditions. This model was used to analyze, for what is believed to be the first time, the effects of: orthomode transducer port mismatches, the frequency response and error sensitivity of crosspolar cancellation systems and the range of possible cancelled system XPD responses during rain. This model also led to the development of a phase compensation technique used to improve the stability of the crosspolar cancellation network. The application of the experimental model resulted in far more accurate determinations of path XPD than would have been otherwise possible. The cancelled XPD results showed a reasonable correlation to horizontal wind velocities and agreed with model predictions for effective mean canting angles ranging between 0 and 6°. The frequent observation of negative differential attenuations and erratic uncancelled XPDs led to the conclusion that drops along the path often did not have consistent shapes and canting angles. This is believed to be due to extremely variable wind conditions. Copolar attenuations considerably lower and higher than expected from the standard predictions were observed. The higher attenuations are satisfactorily explained as resulting from vertical wind conditions and are correlated to the predictions from a proposed model which includes the effects of constant vertical wind velocities. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

Thesis (M. Eng. Sc.)--University of Queensland, 2001. / Includes bibliographical references.

An easy to use model for calculating rain attenuation along earth-space millimeter wave communications links is proposed. The model computes attenuation as a function of point rainfall intensity for a given frequency, path elevation angle, and earth station latitude and altitude. Estimates of the attenuation distribution can be made by coupling the model with a cumulative rainfall intensity distribution. In addition to the presentation of a new model, a review of the basic concepts of attenuation modeling is presented. This review includes the relationship between attenuation and rainfall intensity (specific attenuation), and the statistics of point rainfall intensity. A summary of many other attenuation models is also given. The model is compared to measured data from many satellite beacon experiments. Comparisons are also presented between the proposed model and several other attenuation models. / Master of Science

by Chi Sang Wong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references. / Abstract also in Chinese. / Abstract --- p.ii / Acknowledgements --- p.vii / Table of Contents --- p.viii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Organisation of Thesis --- p.4 / References --- p.6 / Chapter 2 --- Principles and Theories --- p.8 / Chapter 2.1 --- Device Concepts --- p.9 / Chapter 2.2 --- Picosecond Photoconductors --- p.14 / Chapter 2.3 --- Photoconducting Antennas --- p.18 / Chapter 2.4 --- Summary --- p.20 / References --- p.21 / Chapter 3 --- Self-mode-locked Ti:sapphire (Ti:Al203) Laser --- p.24 / Chapter 3.1 --- Introduction --- p.25 / Chapter 3.2 --- Self-mode-locked Ti:sapphire Laser Cavity --- p.26 / Chapter 3.3 --- Negative Dispersion Using Pairs of Prisms --- p.28 / Chapter 3.4 --- Kerr-lens Mode-Locked Model: Role of Space-time Effects --- p.33 / Chapter 3.5 --- Initiation of Self-mode-locked Pulses --- p.37 / Chapter 3.6 --- 39-fs Pulses from A Self-mode-locked Ti:sapphire Laser --- p.38 / Chapter 3.7 --- Summary --- p.42 / References --- p.43 / Chapter 4 --- Photoconductive Detection of Millimetre Waves Using LT-GaAs --- p.46 / Chapter 4.1 --- Introduction --- p.47 / Chapter 4.2 --- Devices Structures --- p.48 / Chapter 4.3 --- Experimental Setup --- p.52 / Chapter 4.4 --- Results and Discussion --- p.54 / Chapter 4.5 --- Summary --- p.57 / References --- p.58 / Chapter 5 --- Investigation of Other Materials for THz Detection --- p.60 / Chapter 5.1 --- Introduction --- p.61 / Chapter 5.2 --- Material Preparation --- p.62 / Chapter 5.3 --- Devices Structures --- p.64 / Chapter 5.4 --- Experimental Setup --- p.68 / Chapter 5.5 --- Results and Discussion --- p.69 / Chapter 5.6 --- Investigation of Other Materials --- p.72 / Chapter 5.7 --- Summary --- p.73 / References --- p.74 / Chapter 6 --- Characteristics of Millimetre Waves --- p.76 / Chapter 6.1 --- Introduction --- p.77 / Chapter 6.2 --- Experimental Setup --- p.78 / Chapter 6.3 --- Experimental Results --- p.80 / Chapter 6.4 --- Experimental Setup --- p.83 / Chapter 6.5 --- Experimental Results --- p.85 / Chapter 6.6 --- Summary --- p.86 / References --- p.87 / Chapter 7 --- Conclusion and Future Work --- p.88 / Chapter 7.1 --- Conclusion --- p.88 / Chapter 7.2 --- Future Work --- p.91 / Appendixes --- p.A-l / Chapter Appendix A: --- Hall Effect Measurement System --- p.A-l / Chapter Appendix B: --- Photography of Device Structures --- p.A-2 / Chapter Appendix C: --- Fast Fourier Transform Program --- p.A-3 / Chapter Appendix D: --- List of Publications --- p.A-4

Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: Dennis W. Prather, Dept. of Electrical and Computer Engineering. Includes bibliographical references.