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 22 for “"Nitrogen-vacancy centers"”.
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Magnetometry with ensembles of nitrogen vacancy centers in bulk diamond
… a high sensitivity vector magnetometer using nitrogen vacancy (NV) centers in a bulk diamond sample. This project began by analyzing the sensitivity of a single NV orientation using a continuous wave electron spin resonance approach. A protocol for determining the diamond's orientation was …
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Frequency down-conversion for quantum networking with nitrogen-vacancy centers in diamond
… for efficient entanglement distribution. The nitrogen-vacancy (NV) center in diamond is an attractive candidate for these memories because of its long coherence time and the ability to optically write to and read out information from its spin. However, the NV-center fluoresces in the visible …
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Tunable and broadband loop gap resonator for nitrogen vacancy centers in diamond
Nitrogen vacancy centers in diamond have emerged as a solid-state analog to atomic systems with applications ranging from room temperature quantum computing to quantum sensing and metrology. To date, with notably few exceptions, all NV applications rely on coherent manipulation of spin states via …
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Optical and spin properties of nitrogen vacancy centers in bulk and nanocrystalline diamond
… focused on building a microscope and studying NV centers in bulk and nanocrystalline diamond. I began by building a confocal microscope which was capable of observing and determine single NV centers. I made measurements on the photon statistics of different defects to determine if they were single …
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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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Pulsed Magnetic Imaging of Broad-Frequency Fields using Nitrogen-Vacancy Centers in Diamond
Wide-field magnetic imaging using nitrogen-vacancy (NV) centers in diamond can yield high-quality images for various applications, including biology, geology, condensed matter physics, and electronics troubleshooting. These quantum sensors yield widefield-of-view images with micron-scale spatial …
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Coherent control of nitrogen-vacancy centers in diamond nanostructures for quantum sensing and networking
… and spin properties of the negatively charged nitrogen-vacancy (NV-) center in diamond have led to numerous applications ranging from super-resolution imaging to the exploration of previously untested new phenomena using quantum entanglement for information processing and sensing. The …
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Electrochemical modulation of fluorescence of nitrogen vacancy centers in nanodiamonds for voltage sensing applications
The nitrogen vacancy (NV) color center in diamond has been used to sense environmental variables such as temperature and electric and magnetic fields. Most sensing protocols depend on the optically detectable magnetic resonance of the negatively charged NV- spin state. As such, fluctuations in the …
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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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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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Searching for M13 bacteriophage with high affinity for nanodiamond particles
… behavior when they are enriched with nitrogen vacancy centers. In order for them to be useful in biomedical applications, they need to be functionalized. In this experiment, a pIII library of M13 bacteriophage were panned versus 100 nm nanodiamonds enriched with approximately 500 …
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Development of a Photonic Link for Enhancements in Quantum Applications
… the design and validation of a system to address nitrogen-vacancy centers in diamond
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A scalable quantum computation platform : solid state quantum memories coupled to photonic integrated circuits
… Pre-characterized solid state quantum nodes (nitrogen vacancy centers in diamond nanophotonic structures) are placed into a photonic integrated circuit which allows for low-loss and phase-stable collection, routing, and detection of photons as well as on-chip state manipulation and classical …
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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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Vector magnetometry using cavity-enhanced microwave readout of solid-state spin sensors
… room-temperature readout of an ensemble of nitrogen-vacancy centers via strong coupling to a dielectric microwave cavity. This strong collective interaction allows the spin ensemble’s microwave transition to be probed directly, thereby overcoming the optical photon shot noise limitations of …
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Optomechanical Spin-Photon Interface in Wide-Bandgap Materials
… motion. The electronic spins of diamond nitrogen-vacancy centers were controlled by mechanical vibrations that were coherently coupled to photons in the telecommunication wavelength band. This approach does not involve the intrinsic optical transitions of a quantum system and is therefore …
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Spin coherence and optical properties of alkali-metal atoms in solid parahydrogen
… electron spin systems for these applications. Nitrogen-vacancy centers in diamond, phosphorus donors in silicon, and molecular nanomagnets are some of the leading examples of the latter case. In this thesis, I will discuss development of a system consisting of trapped alkali atoms in a …
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Optical and spin coherence properties of Rb atoms in solid neon for magnetic field sensing
… is the imaging of complex biological molecules. Nitrogen-vacancy centers in diamond are one of the leading candidates for this goal. Single-nuclear spin imaging was achieved using a C-13 nuclear spin bath in bulk diamond. Electron spins on the surface of diamond, however, cause decoherence and …
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