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Optically detected magnetic resonance with negatively-charged nitrogen vacancy centres in diamond

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posted on 2022-10-12, 02:59 authored by Omar Muhieddine

This thesis investigates the properties of negatively charged nitrogen-vacancy (NV) centres in diamond where we developed experimental capability to explore the optically detected magnetic resonance (ODMR) physics of NV centres. In addition, the energy separations between the ms = |0〉 and ms = |1〉  sublevels of the NV centre ground state are calculated to aid an understanding of the underlying interactions between the NV centre and magnetic fields. Measurements were performed pertaining to the characterisation of a diamond sample, utilising multiple experimental methods such as spectroscopy and optically detected magnetic resonance (ODMR) with magnetic fields and microwaves (MWs). This enables a reliable determination of the various crystal faces (and hence the Miller indices) of the diamond sample which is compared with theoretical models. A custom-built MW cavity is characterised for a range of magnetic fields and MWs. This cavity enables an exploration of how the spin properties of the NV centre vary through the use of different techniques for delivering MWs to the diamond sample. These experimental capabilities allow for a greater understanding of the physics of the NV centre. As a result, the physical properties of our diamond sample provides a platform for further investigating its use in applications such as masers.

History

Table of Contents

1. Introduction to diamond as a quantum architecture -- 2. Characterising the diamond sample -- 3. Characterisation of MW cavity -- 4. Conclusion and outlook -- A. Appendix

Notes

A thesis submitted to Macquarie University for the degree of Master of Research

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

Thesis (MRes), Macquarie University, Faculty of Science and Engineering, 2021

Department, Centre or School

Department of Physics and Astronomy

Year of Award

2021

Principal Supervisor

Lachlan Rogers

Rights

Copyright: Omar Muhieddine Copyright disclaimer: https://www.mq.edu.au/copyright-disclaimer

Language

English

Extent

65 pages

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