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 20 of 832 for “"DOT"”.
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Total Domination Dot Critical and Dot Stable Graphs.
… their neighborhoods. A graph is total domination dot-critical if identifying any pair of adjacent vertices decreases the total domination number. On the other hand, a graph is total domination dot-stable if identifying any pair of adjacent vertices leaves the total domination number unchanged. …
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Patterned Quantum Dot and Inverse Quantum Dot Active Layers for Optoelectronics Applications
Made available in DSpace on 2010-01-06T16:13:31Z (GMT). No. of bitstreams: 4 license.txt: 4058 bytes, checksum: 1b0023be2ac8791ebabc4baafb89f7c9 (MD5) Verma_Varun.pdf.pdf: 3802336 bytes, checksum: f0f4edc3dcda69ec6a1c663fbb45b696 (MD5) Verma_Varun.pdf: 3802336 bytes, checksum: …
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Semiconductor quantum dot lasers.
Stimulated emission in semiconductor quantum dot (QD) laser structures is demonstrated. Red-emitting, self-assembled QDs of highly strained InAlAs were grown by molecular beam epitaxy on GaAs substrates. Carriers injected electrically from the doped regions of separate confinement heterostructures …
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Transport properties of quantum dot molecules and electronic structure of graphene quantum dot qubits
Coupled Quantum dots systems, or quantum dot molecules (QDMs), have been suggested as good candidates for nanoelectronics, spintronics, thermoelectrics, and quantum computing applications. The knowledge in the transport and electronic properties of QDMs is important in making progress toward …
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A quantum dot heterojunction photodetector
… utilizing colloidally grown quantum dots as the principle photo-active component. We implement a thin film of cadmium selenide (CdSe) quantum dot sensitizers, sandwiched between an electron-transporting titanium dioxide (TiO2) layer and a hole-transporting N,N' diphenyl-N,N' …
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Quantum dot gain-lever laser diode
Semiconductor quantum dot (QD) lasers are competitive candidates for many applications such as high-speed long-haul optical communication systems. This is due to their superior lasing characteristics (compared to conventional quantum well (QW) lasers) and also their potential for high differential …
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Religious Poetry and the Red Dot
… the ancient one who places her hand over the red dot on El Castillo's cave wall and feels the power of the Almighty.</p>
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Quantum dot based semiconductor disk lasers
… semiconductor disk lasers based on novel quantum dot (QD) structures. QD structures were embedded in this type of laser recently and allowed a number of advantages compared with the widely used quantum well (QW) structure. These included new spectral region coverage at 1-1.3 µm, enhanced …
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All inorganic colloidal quantum dot LEDs
This thesis presents the first colloidal quantum dot light emitting devices (QD-LEDs) with metal oxide charge transport layers. Colloidally synthesized quantum dots (QDs) have shown promise as the active material in optoelectronic devices because of their tunable, narrow band emission. To date, the …
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Experimental analysis of beam B-Dot sensors
… non-self integrating magnetic-loop sensors (B-dots) has been developed at Los Alamos National Laboratory. Experiments and tests were performed using the Relativistic Electron Beam Experiment (REX) machine to compare the B-dot sensors to optical beam diagnostics (streak camera). the B- dots were …
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Physics of intraband quantum dot optoelectronic devices
… nanostructures, such as quantum wells, wires and dots, have been recognised as sources and detectors of radiation in the mid- and far-infrared region of the spectrum. Much of a success has been obtained with quantum well based intraband devices, such as quantum cascade lasers and quantum well …
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Quantum dot-based semiconductor Terahertz transceiver systems
… into the potential utilisation of quantum dot (QD)-based semiconductor materials and devices in THz systems. This thesis discusses the work carried out in the development of a novel class of PCA devices which were postulated to enable efficient optical-to-THz signal conversion, whilst also …
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Optically injected dual state quantum dot lasers
… of optically injected dual state quantum dot lasers as artificial photonic neurons. Photonic waveguides are not as sensitive to centimetre long transmission lines as electronic circuits. This could be particularly advantageous for neural networks where one element, a neuron, must receive …
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Electronic transport in CdSe quantum dot arrays
… also becomes large, the electronic states on the dot become discrete, and the island is called a quantum dot, or sometimes an artificial atom. Quantum dots have been a focus of active research for the past decade, both as model systems for exploring physics, and as the ultimate limit in size …
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Magnetic properties of an isolated quantum dot
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2003.
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Gallium Nitride (GaN) quantum dot layer formation
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2006.
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