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 14 of 14 for “"silicon-vacancy"”.
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The silicon-vacancy centre in diamond for quantum information processing
… Among defects in solids, the negatively charged silicon-vacancy centre in diamond (SiV$^{−}$) has attracted attention for its very promising optical properties for such a network. In this thesis, we investigate the spin properties of the silicon-vacancy centre as a potential spin-photon …
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Distribution of Radiation-Induced Defects in Quartz at the ACKIO Uranium Prospect, Athabasca Basin, Saskatchewan: Tracing Uranium-Bearing Fluids
… sandstones and basement rocks host a suite of silicon-vacancy hole centers, formed by the bombardment of alpha particles emitted from the radioactive decay of uranium, thorium, and their unstable daughter isotopes. The differences in EPR signal intensities of these hole centers indicate that …
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Plasmonics for On-Chip Photodetectors and Light Sources
… for quantum memory type applications is the silicon vacancy center in diamond. Presented in this dissertation are results showing ensemble silicon vacancy containing diamond membranes integrated with ultrasmall mode volume plasmonic nanocavities. The cavity integrated silicon vacancies …
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Design of Efficient Acoustic Interfaces for Quantum Emitters in Diamond
… via spin-phonon interactions with Group IV Silicon vacancy (SiV⁻) centers in diamond. First, we design and simulate a spin-optomechanical interface with ultrasmall mechanical and optical mode volumes ([formula] and [formula], respectively) to interface SiV⁻ centers with a telecom optical …
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Solid-State Quantum Memories for Near-Term Quantum Repeaters
… create a coherent spin-photon interface between silicon-vacancy centers in diamond and optical photons in the low-loss telecom band. Finally, we investigate color centers in other engineering materials, including silicon and silicon carbide, to better understand the fundamental trade space of …
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Control of Optical Processes in Diamond using Plasmonic Nanogap Cavities
… One particularly promising emitter is the silicon vacancy (SiV) in diamond, which offers excellent photostability and minimal spectral diffusion, in addition to coherent emission at its zero-phonon line (ZPL) comprising 80% of its total fluorescence. In this dissertation, up to 121-fold …
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Analyzing Electronic Correlation Effects in Molecules and Semiconductor Point Defects from First Principles Beyond Density Functional Theory
… to describe the electronic properties of a silicon vacancy in silicon carbide, a potential point-defect qubit.
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Luminescent nanofluids based on perovskite materials and nanodiamonds
… range, and the potential for using nitrogen-vacancy (NV-) and silicon-vacancy (SiV-) centres in nanodiamonds for temperature sensing remains unexplored. This thesis aims to develop luminescent nanofluids based on halide perovskite QDs and nanodiamonds with optimized luminescent properties for …
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Three Grains, Two Photons and a Colourful Diamond
… Finally, a series of optical studies on the Silicon-Vacancy (SiV) colour-centre in diamond are reported. Coherent Population Trapping (CPT) experiments performed using electrically actuated diamond micro-cantilevers show that the ground state splitting, and therefore the strength of the …
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Quantum control of optically active defects in the solid state
… 1997, it was demonstrated that a single nitrogen-vacancy (NV) center defect in diamond could act as a stable single photon source [1]. In the same study, the electronic spin of the same defect was optically initialized and read out. Remarkably, both of these achievements occurred under ambient …
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Studio multiscala degli stati elettronici e di spin indotti da difetti di punto in semiconduttori a banda larga e prospettive per le tecnologie quantistiche
Il nostro obiettivo principale è l'analisi dei difetti di punto nei semiconduttori a larga banda. Li studiamo dapprima da principi primi attraverso l'uso di metodi ab initio basati sulla teoria del funzionale densità, quindi utilizziamo altri mezzi di analisi per trovare possibili applicazioni …
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Molecular Dynamics study of defect evolution mechanisms in material of interests for quantum technologies [Studio di Dinamica Molecolare dei meccanismi di evoluzione dei difetti nei materiali di interesse per le tecnologie quantistiche]
Abbiamo studiato la formazione e l'evoluzione dei difetti nel 3C–SiC utilizzando simulazioni di dinamica molecolare classica con potenziali interatomici dipendenti dall'ambiente. Il benchmarking preliminare ha incluso parametri reticolari, energie di formazione dei difetti e calcoli del punto di …