High-precision electron-spin sensing with ensembles of nitrogen-vacancy centers in diamond
Name
930618860-MIT.pdf
Description
Full printable version
Size
9.73 MB
Format
Adobe PDF
Checksum (MD5)
248349f9f0e6dffb43aca78dd38db329
Author(s)
Đorđević, Tamara
Advisor(s)
Dirk R. Englund and Vladan Vuletić.
Date Issued
2015
Publisher
Massachusetts Institute of Technology
Abstract
This thesis describes physical background and an experimental realization of a bulk diamond magnetic field and temperature sensor. The sensing is done using continuous-wave 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 center and recover resonant frequencies of the ESR spectrum. Using the Lindblad master equation, we model ESR line-shape and for the first time consider the influence of infrared driving on the ESR contrast. Both continuous-wave and pulsed sensing protocols are described, and a novel reference-free temperature sensing scheme is proposed. In addition to building a laboratory setup for sensing, we discuss how to miniaturize the setup components and make an on-chip diamond sensor. In particular, we optimize the on-chip fluorescence collection apparatus. Finally, using the built laboratory setup, we demonstrate magnetic field sensitivity floor on the order of 1 nT/Hz 1/2 and temperature sensitivity floor of 0.3 mK/Hz 1/2.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Physics, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 81-83).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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