by Chan Pak-To. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references. / Chapter 1. --- Introduction / Chapter 1.1 --- Overview --- p.1-3 / Chapter 1.2 --- Current Technology of Coherent Detection --- p.3 -8 / Chapter 1.3 --- About this Project --- p.8 / References --- p.9 -12 / Chapter 2. --- Background Theory / Chapter 2.1 --- MSM Photodetector --- p.1 -6 / Chapter 2.2 --- Optical Coherent Detection --- p.6-7 / Chapter 2.3 --- Shot Noise Limited Detection --- p.8-9 / Chapter 2.4 --- Self Heterodyne Linewidth Measurement --- p.9-11 / References --- p.12 / Chapter 3. --- Instrumentation / Chapter 3.1 --- Steps for fabricating MSM Photodetector --- p.1 -4 / Chapter 3.2 --- Device Characteristics Acquisition --- p.5-6 / Chapter 4. --- Ga0 .47In0. 53as msm Photodetector with al0.1 In0.9p barrier enhancement layer / Chapter 4.1 --- General Description --- p.1 / Chapter 4.2 --- Device Preparation --- p.1-2 / Chapter 4.3 --- Metallization Patterns --- p.2-3 / Chapter 4.4 --- Experimental Results and Discussions --- p.3-12 / Summary --- p.12 / References --- p.13 / Chapter 5. --- Fast Photodetector Frequency Response Measurements / Chapter 5.1 --- General Description --- p.1 / Chapter 5.2 --- Optical Heterodyne Measurement --- p.1 -5 / Chapter 5.3 --- Measurement by Pulse Spectrum Analysis --- p.6 -9 / Chapter 5.4 --- Discussions --- p.10 -13 / Summary --- p.13 / References --- p.14 / Chapter 6. --- Balanced Heterodyne Detection with MSM-PDs / Chapter 6.1 --- General Description --- p.1 / Chapter 6.2 --- Mathematical Description --- p.1-4 / Chapter 6.3 --- Excess Noise Cancellation --- p.4-5 / Chapter 6.4 --- Balanced GalnAs MSM Photodetector --- p.6 -9 / Chapter 6.5 --- Optical Heterodyne Detection --- p.10 -13 / Chapter 6.6 --- Balanced Heterodyne Detection --- p.14 -19 / Summary --- p.19 / References --- p.20 / Chapter 7. --- Polarization Diversity Heterodyne Detection / Chapter 7.1 --- Principle --- p.1-2 / Chapter 7.2 --- Experiment and Discussions --- p.2-6 / Summary --- p.6 / References --- p.6 / Chapter 8. --- Conclusion / Appendix A Discrete Fourier Transform --- p.1-7 / Appendix B External Cavity Laser --- p.1 -2 / List of Accepted Publications during the Period of Study

Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

The purpose of this paper is to discuss the relationship of information and communication technologies (ICTs), organizational change and ICT labors on plant¡¦s performance. We first develop AICT and EICT indicators for Taiwan optoelectronic industry and extend the Caroli and Reenen (2001) model to measure the impact of ICTs and ICT labors on plant¡¦s economic performance and organizational structure. In this paper, we can get the evidences that ICTs and ICT labors make Taiwan optoelectronic industry raise their productivity and inner organizational change.

Includes bibliographical references (p. 155-159).

Thesis (MTech (Electrical Engineering))--Peninsula Technikon, 2002. / Word processed copy. Summary in English. Includes bibliographical references (leaves 148-149). Also available online.

No description available.

Numerous semiconductive organic materials are actively being pursued for application in sensing and electronics. Chapter one introduces conjugated polymers (CPs) and their many useful properties, including electroluminescence, which has helped foster growing demand for these materials in low-power organic light emitting diodes (OLED) for solid state lighting and additionally polychromatic displays. In the second chapter of this dissertation, we develop the concept of digrignard scavengers for use in nickel catalyst transfer polymerization of diarylmagnesate monomers into conjugate polymers within a unique mixed THF/1,4-Dioxane solvent system. Our initial findings include a polymerization method which permits the formation of an electronics grade copolymer with molecular weights in excess of Mn = 50 kg/mol within 15 minutes using a scalable, room temperature method. In chapter three, we discuss the synthesis and characterization of Polysilafluorenes (PSFs), which are an important class of light-emitting conjugate polymers noted for their characteristic brilliant solid state blue luminescence, high quantum efficiency, excellent solubility and improved thermal stability. In chapter four, we present a protocol for photopatterning derivatives of poly(3,6-dimethoxy-9,9-dialkylsilafluorenes) with resolutions exceeding 10 μm. The resultant crosslinked material possess characteristic blue photoluminescence with solid state quantum yields > 80%. In chapter five, we present a protocol for 3-D photopatterning derivatives of poly(3,6-dimethoxy-9,9-dialkylsilafluorenes) with resolutions exceeding 200 nm using two photon direct laser writing techniques. In chapter six, we present a unique deep blue emitting copolymer, poly(3,6-dimethoxy-9.9`-dihexylsilafluorene-co-3.6-dimethoxy-2’,3’,6’,7’-tetrahexyloxy-9,9-spiro-9-silabifluorene) (PHSSF-co-PDHSF), which exhibits brilliant solid state blue luminescence, high quantum efficiency, excellent solubility and thermal stability. In chapter seven, we explore crosslinked conductive metallocene polymer networks that mediate chemical, electronic and mechanical signals.

Numerous semiconductive organic materials are actively being pursued for application in sensing and electronics. Chapter one introduces conjugated polymers (CPs) and their many useful properties, including electroluminescence, which has helped foster growing demand for these materials in low-power organic light emitting diodes (OLED) for solid state lighting and additionally polychromatic displays. In the second chapter of this dissertation, we develop the concept of digrignard scavengers for use in nickel catalyst transfer polymerization of diarylmagnesate monomers into conjugate polymers within a unique mixed THF/1,4-Dioxane solvent system. Our initial findings include a polymerization method which permits the formation of an electronics grade copolymer with molecular weights in excess of Mn = 50 kg/mol within 15 minutes using a scalable, room temperature method. In chapter three, we discuss the synthesis and characterization of Polysilafluorenes (PSFs), which are an important class of light-emitting conjugate polymers noted for their characteristic brilliant solid state blue luminescence, high quantum efficiency, excellent solubility and improved thermal stability. In chapter four, we present a protocol for photopatterning derivatives of poly(3,6-dimethoxy-9,9-dialkylsilafluorenes) with resolutions exceeding 10 μm. The resultant crosslinked material possess characteristic blue photoluminescence with solid state quantum yields > 80%. In chapter five, we present a protocol for 3-D photopatterning derivatives of poly(3,6-dimethoxy-9,9-dialkylsilafluorenes) with resolutions exceeding 200 nm using two photon direct laser writing techniques. In chapter six, we present a unique deep blue emitting copolymer, poly(3,6-dimethoxy-9.9`-dihexylsilafluorene-co-3.6-dimethoxy-2’,3’,6’,7’-tetrahexyloxy-9,9-spiro-9-silabifluorene) (PHSSF-co-PDHSF), which exhibits brilliant solid state blue luminescence, high quantum efficiency, excellent solubility and thermal stability. In chapter seven, we explore crosslinked conductive metallocene polymer networks that mediate chemical, electronic and mechanical signals.

The object of this work (featuring the study of alignment of lines in space) is to produce a novel system for automatic production of optoelectronic components. It begins by reviewing the different components associated with optical fibre transmission and examines the existing laser-fibre coupling methods. The manual alignment technique adopted by STC to align a laser beam with a monomode optical fibre is then presented. The various interpretations of alignment are explored. The results obtained from the analysis determine the type of manipulator required for laser to optical fibre coupling. The central axis of a divergent beam emitted by a semi-conductor laser diode is manipulated for alignment with the axis of the fibre. Such an alignment places stringent displacement tolerance and accuracy demands on the manipulator. To construct a manipulator, actuators need to be coupled together. The coWling methods are studied and presented. Prior to this study, commercially available actuators are surveyed leading to the selecticin of the Oriel Encoder Mike actuator. This actuator exhibits some inherent control problems but meets the laser-fibre coupling accuracy demands. Various types of couplings are also examined based on the expansion of the Kelvin coupling for the construction of a four degree of freedom manipulator. A computational algorithm analogous to that used to solve two plane balancing problems is sucessfully tested on this manipulator for alignment of a conventional He-Ne laser beam with the centres of two transparent screens. This algorithm requires linearity for its success. For this reason and for purposes of completeness, spatial displacement characteristics of the manipulator are analysed and confirmed experimentally. This work ends with the ocnstruction. and testing of a program based on a hill climbing technique for the control of a three degree of freedom (Oriel Encoder Mike) manipulator to align a laser beam emitted by a semi-conductor laser diode with a monomode optical fibre.

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: tympanic membrane; optoelectronic holography; otoscope; stroboscopic holography; interferometry. Includes bibliographical references (leaves 62-68).