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Exploring the silicon vacancy centre in CVD grown nanodiamond for near-resonant optical trapping

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posted on 29.03.2022, 02:03 authored by Matthew van Breugel
The focus of this thesis is the fabrication of diamond nanocrystals containing many Silicon Vacancy (SiV) centres. Firstly, we grow via chemical vapour deposition (CVD) a 200−µmthick diamond film on a silicon substrate. From this film, we produce diamond nanocrystals by means of ball milling. We characterize the physical and optical properties of the nanodia- mond sample with a lab-built integrated confocal and atomic force microscope. We find thatthe fabricated nanodiamonds have an average size of ∼160 nm and contain SiV centres witha zero phonon line centred at 739 nm and an average inhomogeneus spectral line broadening of ∼12 nm. Secondly, we employ the fabricated nanodiamonds containing SiV centres to investigate a new type of optical trapping in liquid. This method exploits near-resonant dipole forces due to the atomic transition of the SiV centres and results in detuning-dependent attractiveand repulsive forces in the vicinity of the atomic transition.

History

Alternative Title

SiV centres in CVD grown nanodiamond for near-resonant optical trapping.

Table of Contents

1. Introduction -- 2. Diamond & colour centres -- 3. Diamond synthesis & the incorporation of colour centres -- 4. Growth and characterisation -- 5. Optical trapping of SiV nanodiamonds.

Notes

Bibliography: pages 57-68 Theoretical thesis. "ARC Centre of Excellence for Engineered Quantum Systems, Quantum Materials and Applications Group, Diamond Nanoscience Laboratory" -- title page. Spine title: SiV centres in CVD grown nanodiamond for near-resonant optical trapping.

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

MRes, Macquarie University, Faculty of Science and Engineering, Department of Physics and Astronomy

Department, Centre or School

Department of Physics and Astronomy

Year of Award

2014

Principal Supervisor

Thomas Volz

Rights

Copyright Matthew van Breugel 2014. Copyright disclaimer: http://www.copyright.mq.edu.au

Language

English

Extent

1 online resource (x, 68 pages) illustrations (some colour)

Former Identifiers

mq:48692 http://hdl.handle.net/1959.14/1100735