Global ETD Search
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 19 of 19 for “"Optical storage"”.
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A study on the standards in optical storage device industry
… related to the evolution of standards in the optical storage device industry and other forces leading the market competition. Philips and Sony, the innovators of the CD technology, had taken the technology leadership of the industry for more than a decade. However, early followers such as …
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Product development strategy for LG Electronics in optical storage-based consumer electronics
With the dawning of the digital era, many home electronic products are emerging. One of the fastest growing and most wide-spread products in the market is the DVD player. Few digital products have achieved as fast a market penetration, and with as rapid a price drop, as the DVD player. This thesis …
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Impurity-induced layer disordering and hydrogenation in the indium aluminum gallium phosphide material system: Visible spectrum semiconductor lasers
… for such sources include high-density optical storage units and optical communications. Additionally, the use of multiple-stripe arrays makes high-power ($\gg$200 mW per facet) coherent semiconductor light sources a possibility.
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On the way to molecular optical switches : a solid state NMR study of trans-cinnamic acids
… attraction because of a potential application in optical memory storage systems. This field of research is motivated by the pursuit of miniaturization of high capacity storage systems, with the conventional technique soon reaching its limits. In molecular optical storage systems, the switch …
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Stresses, viscous flow and crystallization kinetics in thin films of amorphous chalcogenides used for optical data storage
… computers usually contain several kinds of data storage devices. Very frequently magnetic and optical storage media are being used. The latter have become of great interest especially throughout the last decade: nowadays a significant amount of data is being stored on compact discs (CDs) and …
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The Telecommunications Emergency Decision Support System as a crisis management decision support system
… information systems, graphical user interfaces, optical storage and voice recognition.
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Crystallization kinetics in antimony and tellurium alloys used for phase change recording
… computers usually employ several types of data storage devices. Most frequently, magnetic and optical storage media are used. The latter have become of great importance throughout the last decade: nowadays a significant amount of data is stored on compact discs (CDs) and digital versatile discs …
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Optical Characterization of Electrochemically Self-Assembled Compound Semiconductor Nanowires
… attention as possible source for lasers and optical storage media. We report the fabrication and optical characterization of ZnO and CdS nanowires. The former are produced by electrochemical deposition of Zn inside nanoporous alumina films containing regimented arrays of 10nm, 25nm and 50 nm …
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Thermal management in GaAs/AlGaAs laser diode structures
… commercial applications as barcode readers and optical storage devices. However, thermal characteristics have been a deterring factor for their greater use. Hence, investigating thermal management in laser diode structures becomes an important and interesting study for current and future laser …
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Optically active photoresponsive multifunctional polymeric materials
… the properties typical of dissymmetric systems (optical activity, exciton splitting of dichroic absorptions), as well as the features typical of photochromic materials (photorefractivity, photoresponsiveness, NLO properties). The first part of this research was to synthesize analogue homopolymers …
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Nanophotonics for dark materials, filters, and optical magnetism
… application areas is described, a near perfect optical absorber based on a graphene/dielectric stack, an ultraviolet bandpass filter formed with an aluminum/dielectric stack, and structures exhibiting homogenizable magnetic properties at infrared frequencies. The graphene stack can be treated as …
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Modeling of devices for gallium-nitride-based integrated photonics
… such as medical inspection, sterilization, optical storage, solid-state lighting, and the blue-green light sources in full-color displays have made GaN-related devices influential in people’s daily life. Most of the research to date on III-nitride (III-N) semiconductors has concentrated on …
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Role of nanoscale order in the nucleation of amorphous chalcogenide alloys
… used as the active recording media in current optical storage and upcoming solid state memories because of their remarkable properties. They can be rapidly and reversibly transformed between the amorphous and crystalline phases, and they exhibit large contrast in the optical and electrical …
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Maßgeschneidertes und Analytik-Ersatz : über die quantenchemischen Untersuchungen einiger ternärer intermetallischer Verbindungen
… of high technical interest due to their usage in optical storage media. They are able to be quickly switched between an amorphous and a crystalline state and are utilized for re-writable DVDs and CDs. Only experimentalists have been improving these materials (by now). The quantum-physical …
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Azobenzene-functionalized molecular glasses for holographic applications
Holography is an optical imaging technique, with which an authentic copy of the original object can be created, even in the absence of the object itself. This means, that in contrast to conventional photography, the information of depth is not lost. Holography is based on writing an interference …
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Nonlinear optical studies of dye-doped nematic liquid crystals
Nematic liquid crystals possess large optical nonlinearities owing to their large refractive index anisotropy coupled with the collective molecular reorientation. Doping absorbing dyes into liquid crystals increases their optical responses significantly due to increased absorption in the visible …
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Phase change materials for non-volatile electronic memories
… their applications in the field of data storage are reviewed. Without the latter there would certainly be less attention paid to the topic today, even in basic research. For years now, optical data storage media based on phase change materials have been successfully produced for the mass …
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Crecimiento de nitruros del grupo III por epitaxia de haces moleculares para la fabricación de diodos electroluminiscentes en el rango visible-ultravioleta
… light generation, traffic signals, high density optical storage devices and ultraviolet germicide sterilization. Growth mode and surface morphology of (0001) GaN were analysed as a function of growth temperature and impinging Ga/N flux ratio. The results reveal three different growth modes: …
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Quantum Optics and Quantum Information Processing in Rare-Earth-Ion-Doped Crystals
… echo experiment has been performed where faint optical pulses were accumulated in the crystal. In this experiment, the possibility of single photons acting as two of the optical fields in the photon echo process was investigated. Different aspects on the experiment, which can be viewed as …