Precision measurement of magnetic elds is at the heart of many important analytic techniques in m... more Precision measurement of magnetic elds is at the heart of many important analytic techniques in materials, geology, biology, medicine, security, space, and the physical sciences. These applications require operation under a wide range of specications regarding sensitivity, spatial resolution, bandwidth, scalability, and temperature. In this work we have developed the enabling technology for magnetometers based on nitrogen-vacancy (NV) defects in diamond which promise to cover a wider portion of this parameter space than existing sensors. We have studied how to prepare diamond material optimized for magnetometry, and we observed the basic optical and spin properties of the NV centers. Using a novel scheme inspired by new information about NV centers gathered from these studies, we constructed a sensor which improved on the state-of-the-art in a number of areas. Finally, we outline a plan for improving these sensors to study micro-and nano-scale magnetic phenomena currently inaccessible using existing technology. i To my parents, Marjorie Churgin and Thomas Acosta, and my partner Andrea Lee, for their generous love and support. 2 Diamonds with a high density of nitrogen-vacancy centers for magnetometry applications 31
Precision measurement of magnetic elds is at the heart of many important analytic techniques in m... more Precision measurement of magnetic elds is at the heart of many important analytic techniques in materials, geology, biology, medicine, security, space, and the physical sciences. These applications require operation under a wide range of specications regarding sensitivity, spatial resolution, bandwidth, scalability, and temperature. In this work we have developed the enabling technology for magnetometers based on nitrogen-vacancy (NV) defects in diamond which promise to cover a wider portion of this parameter space than existing sensors. We have studied how to prepare diamond material optimized for magnetometry, and we observed the basic optical and spin properties of the NV centers. Using a novel scheme inspired by new information about NV centers gathered from these studies, we constructed a sensor which improved on the state-of-the-art in a number of areas. Finally, we outline a plan for improving these sensors to study micro-and nano-scale magnetic phenomena currently inaccessible using existing technology. i To my parents, Marjorie Churgin and Thomas Acosta, and my partner Andrea Lee, for their generous love and support. 2 Diamonds with a high density of nitrogen-vacancy centers for magnetometry applications 31
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