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 16 of 16 for “"nitrogen vacancy center"”.
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High-Sensitivity Nitrogen-Vacancy Center Magnetometry: from DC to GHz
… years, quantum sensing of magnetic fields using nitrogen-vacancy (NV) center ensembles in diamond has matured into an established discipline, with several proof of principle demonstrations in condensed matter physics, biological systems, electronics testing, and geomagnetism. However, despite the …
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Optimizing chemical-vapor-deposition diamond for nitrogen-vacancy center ensemble magnetometry
The nitrogen-vacancy (NV) center in diamond has emerged as a promising platform for high-sensitivity, vector magnetic field detection and high spatial resolution magnetic-field imaging due to its unique combination of optical and spin properties. NV diamond magnetometry has enabled a wide array of …
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Optics-Based Quantum Information and Sensing Platforms Utilizing the Nitrogen-Vacancy Center in Diamond
The nitrogen-vacancy (NV) center is a point defect in the diamond crystal lattice, forming a localized-electron system with unique optical and spin properties. In particular, optical control and read-out of the spin state, combined with long spin coherence times, make it an attractive candidate for …
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Development of a platform for sensing cellular electrical activity using nitrogen vacancy centers in nanodiamonds
The nitrogen vacancy center (NV) in diamond hosts unique optical properties that allows it to be used for sensing magnetic fields, electric fields, and temperature. In addition, the photostability of the NV center and the biocompatibility of diamond suggests the utility of the NV center for …
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High-precision electron-spin sensing with ensembles of nitrogen-vacancy centers in diamond
… electron-spin resonance spectra of nitrogen-vacancy centers in diamond. Experiments were performed using a light-trapping diamond waveguide sample, with which we estimate to address 10¹³ nitrogen-vacancy centers simultaneously. We derive energy level structure of a nitrogen-vacancy …
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Super-resolution localization and readout of individual solid-state qubits
… a leading system is the negatively charged nitrogen vacancy center in diamond, which allows access to a spin center that can be entangled to multiple nuclear spins. Scaling these systems will require the entanglement of multiple NV centers, together with their nuclear spins, in a manner that …
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Towards quantum information processing with diamond color centers
… of the leading solid-state quantum systems, the nitrogen vacancy (NV) center in diamond. The NV has emerged as an excellent quantum sensor, in which quantum logic techniques can significantly improve performance. However, a remaining problem concerns the rate and fidelity of NV spin measurement. …
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Wide-field magnetic field imaging with nitrogen vacancy centers in nanodiamonds at high frame-rates
The nitrogen vacancy center (NV) is a promising single spin system in diamond with optical polarization, readout and optically detected magnetic resonances (ODMR). The NV has been shown to be a sensitive magnetometer at room temperature. In particular, owing to their small size, NV centers in …
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Coherent control of electron spins in diamond for quantum information science and quantum sensing
… and multiple electronic spins associated with nitrogen-vacancy centers and other paramagnetic centers in synthetic diamond crystals. We first introduce and experimentally demonstrate the Walsh reconstruction method as a general framework to estimate the parameters of deterministic and …
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Digital noise reconstruction with a quantum sensor
… proof-of-principle demonstration using a single nitrogen-vacancy center in diamond to characterize its environmental noise dominated by the carbon-13 nuclear spin bath, and discuss the practical limitations of the reconstruction accuracy and avenues for its improvement. Finally we also introduce …
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AN EXPLORATION OF DEFECT-BASED SINGLE PHOTON SOURCES: ZINC OXIDE AND HEXAGONAL BORON NITRIDE
… processing technologies. Although the nitrogen-vacancy center in diamond has historically garnered the most attention, efforts to discover novel single photon sources have uncovered candidates in SiC, GaN, WSe2, WS2, ZnO, and hexagonal boron nitride (h-BN). In this thesis we focus our …
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Fiber-taper collected photoluminescence characterization of diamond microdisks
… provide such interfaces for atomic-like defect centers in diamond, which are leading qubit candidates. Fabrication advancements have recently lead to the construction of high quality diamond microdisk resonators, which show potential to reach enhancements with Purcell factor CNV ∼ 50. Here, a …
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Opportunities for multimodal quantum sensing in intracellular environments
… with high sensitivity and spatial resolution. Nitrogen vacancy centers (NV) in diamond have emerged as one of the leading candidates for room temperature quantum sensing due to their stable photoluminescence and exceptional electronic spin coherence at room temperature. The ground-state spin …
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Probing two-dimensional magnetic phenomena with diamond quantum microscopy
The demand for data storage continues to increase, driving the exploration and character- isation of novel materials for post-silicon technology. The development of high-density memory devices based on novel magnetic materials has promising aspects such as un- matched data retention and low power …
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Quantum control of optically active defects in the solid state
… In 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 …