Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/131087
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Type: | Journal article |
Title: | Preferential coupling of diamond NV centres in step-index fibres |
Author: | Li, S. Bai, D. Capelli, M. Sun, Q. Shahraam Afshar, V. Simpson, D.A. Foster, S. Ebendorff-Heidepriem, H. Gibson, B.C. Greentree, A.D. |
Citation: | Optics Express, 2021; 29(10):14425-14437 |
Publisher: | The Optical Society; OSA Publishing |
Issue Date: | 2021 |
ISSN: | 1094-4087 1094-4087 |
Statement of Responsibility: | Shuo Li, Dongbi Bai, Marco Capelli, Qiang Sun, Shahraam Afshar V., David A. Simpson, Scott Foster, Heike Ebendorff-Heidepriem, Brant C. Gibson, And Andrew D. Greentree |
Abstract: | Diamonds containing the negatively charged nitrogen-vacancy centre are a promising system for room-temperature magnetometry. The combination of nano- and micro-diamond particles with optical fibres provides an option for deploying nitrogen-vacancy magnetometers in harsh and challenging environments. Here we numerically explore the coupling efficiency from nitrogen-vacancy centres within a diamond doped at the core/clad interface across a range of commercially available fibre types so as to inform the design process for a diamond in fibre magnetometers. We determine coupling efficiencies from nitrogen-vacancy centres to the guided modes of a step-index fibre and predict the optically detected magnetic resonance (ODMR) generated by a ensemble of four nitrogen-vacancy centres in this hybrid fibre system. Our results show that the coupling efficiency is enhanced with a high refractive index difference between the fibre core and cladding and depends on the radial position of the nitrogen-vacancy centres in the fibre core. Our ODMR simulations show that due to the preferential coupling of the nitrogen-vacancy emission to the fibre guided modes, certain magnetometry features such as ODMR contrast can be enhanced and lead to improved sensitivity in such diamond-fibre systems, relative to conventional diamond only ensemble geometries. |
Rights: | © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
DOI: | 10.1364/OE.417825 |
Grant ID: | http://purl.org/au-research/grants/arc/CE140100003 http://purl.org/au-research/grants/arc/FT160100357 |
Published version: | http://dx.doi.org/10.1364/oe.417825 |
Appears in Collections: | Aurora harvest 4 IPAS publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_131087.pdf | Published version | 5.23 MB | Adobe PDF | View/Open |
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