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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 72 for “"Opto-electronic"”.
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Opto-Electronic Switching Matrix
Made available in DSpace on 2014-12-08T22:24:28Z (GMT). No. of bitstreams: 1 6901373.pdf: 3003134 bytes, checksum: ca3a528b3a4d7d6c66cf323435b96acf (MD5) Previous issue date: 1968
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An opto-electronic soil profile meter
A mechanical, non-contact soil profile meter was developed to measure soil elevations before and after an artificial rainfall for erosion studies. The design goals were to measure the heights of the soil in a 1.5 x 1.5 m bin with an accuracy of ±1.0 mm and at a data collection rate of 2 points per …
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Novel opto-electronic and plastic fibre sensors
… It can, in principle, be implemented using only opto-electronic components or it can incorporate optical fibres to allow for EMI free and remote operation. The sensor is implemented using Plastic Optical Fibres (POF) as these offer considerable advantages over glass fibres or glass fibre bundles. …
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Opto-Electronic Sensing of Soil Organic Matter
Made available in DSpace on 2014-12-14T06:37:11Z (GMT). No. of bitstreams: 1 8009080.pdf: 4545676 bytes, checksum: 42e6f2f424de178d35c741b9d01b44e4 (MD5) Previous issue date: 1979
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Interfacial Properties of Graphene for (Opto)Electronic Devices
… has empowered the development of the current (opto)electronic applications. However, the fundamental physical limitations of the current complementary metal-oxide-semiconductor (CMOS) FETs such as the short channel effect make it challenging to reduce the channel lengths further below 10 nm. …
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Hybrid Opto-Electronic Processing Systems for Integer Multiplication
… for integer multiplication in free-space opto-electronic systems. The scheme circumvents hardware constraints imposed by modern material and technology stacks. Without sacrificing numerical accuracy, the method reduces the modulation requirements for each spatial light modulator (SLM) from …
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Novel Quantum Materials for Spintronic and Opto-Electronic Applications
… role in the development of spintronics and opto-electronics, as their properties can greatly influence device performance. For instance, in spintronics, materials such as ferromagnetic half-metals, Giant Magnetoresistants (GMR), and magnetic semiconductors have been extensively studied due …
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Developing microwave probes for investigating opto-electronic processes in photovoltaic materials
… by the need to understand the underlying opto-electronic processes which limit the efficiency of photovoltaic materials, we develop two complimentary microwave capabilities: Time-resolved Microwave Conductivity (TRMC) as a probe for charge carrier dynamics, and shaped pulse Electron …
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Opto-Electronic Modulation of Quantum Dots by Cells and Bioactive Molecules
… bioactive molecules might be used to alter the opto-electronic properties of QDs.|Here, we show that these properties can be altered by bioactive molecules and biological macromolecules following controlled changes in cellular activities. Using CdSe/ZnS core/shell QDs, spectroscopic analysis of …
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Micro-optic elements for a compact opto-electronic integrated neural coprocessor
… the optical elements needed for the Compact Opto-electronic Integrated Neural coprocessor (COIN coprocessor) project. The COIN coprocessor is an implementation of a feed forward neural network using free-space optical interconnects to communicate between neurons. Prior work on this project …
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ADVANCED MATERIALS: PREPARATION, STUDY AND OPTIMIZATION OF THIN FILM FOR OPTO-ELECTRONIC DEVICE
The term “optoelectronic devices” is by now used for devices in which both electrons and photons are essential for their operation, as a natural evolution from the definitions of electronic devices that involved only electrons and holes in their operation and of photonic devices that involved only …
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Unleashing the potential of ULPING: synthesis and property tuning of opto-electronic materials
… laser, to green-synthesize nanostructures on opto-electronic materials. Silicon, Gold-coated silicon, and gallium oxide were chosen as substrates, revealing diverse nanostructure morphologies upon parameter modulation. Opto-electronic characterization showcased amplified band gaps across all …
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Structural and Opto-Electronic Properties of GaAs and InP Based Quantum Dot Lasers
A study of the structural and opto-electronic properties of state-of-the-art GaAs and InP quantum dot (QD) lasers is reported. <br/> <br/>A high resolution structural analysis allows a size anisotropy of commercial GaAs based QDs to be determined. A model to simulate the shape of the density of …
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Novel Materials and Processes for Fabrication of Integrated Photonic and Opto-Electronic Devices
Photonic devices, traditionally made in silicon, silicon dioxide and III-Vsemiconductor based materials, are the basis for many advances in the optical telecommunication area. Thin films are the foundation for these devices. Typically thin films are made from methods that involve expensive or …
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Investigation of splanchnic perfusion utilising an intraluminal opto-electronic sensor placed in the duodenum
The splanchnic region (abdominal gastrointestinal organs) is sometimes known as the “canary of the body” for its susceptibility to develop hypoxia at an earlier stage, analogue to the old times practice in coal mining. When the neuroendocrine response is activated, it exhibits regulation of blood …
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Opto-electronic characterization of polycrystalline CuInS2 and Cu(In,Ga)S2 absorber layers by photoluminescence
… dieser Ansatz aufgrund der lateral variierenden opto-elektronischen und strukturellen Eigenschaften nicht eins zu eins übertragen. In dieser Arbeit werden durch die lateral und spektral aufgelöste Messung der PL mit sub-Mikrometer Auflösung sowie den Übergang zur makroskopischen Messung die …
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SYNTHESIS, ELECTRONIC AND OPTO-ELECTRONIC TRANSPORT PROPERTIES OF ATOMICALLY THIN 2D LAYERS OF MoS2, WSe2 and CuIn7Se11
… materials show remarkable promise for future electronic and opto-electronics applications. The scope of this dissertation, thus, broadly covers the electronic and opto-electronic properties of such few layered 2D materials. Extensive investigation of electronic and opto-electronic transport …
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An Optoelectronic Detector Circuit for Measuring Ultra-Small Angular Deflections
… was to design, construct, test and evaluate an opto-electronic detector subsystem for use in the Small Angle Measurement Device (SAMD) system. The SAMD measures the ultra-small angular deflection (bending) of the substrate to which it is attached.
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Variable temperature high-frequency response of heterostructure transistors
… transistors is essential for emerging opto-electronic integrated circuits (OEICs) and monolithic microwave integrated circuits (MMICs). Applications for OEICs and MMICs include the rapidly growing telecommunications and personal communications markets. The key to successful OEIC and …
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Gravitational effects on defect formation in melt grown photorefractive materials : bismuth silicate
… to produce bulk material with the homogeneity of opto-electronic properties that is required for device applications. Bismuth Silicate, Bi12SiO20, (BSO) is a photorefractive material with outstanding properties including a fast response time and high sensitivity is studied. Its photorefractivity …
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