Nitrogen vacancy centre-embedded microbottle resonators for radiative rate inhibition and temperature sensing applications
Nitrogen vacancy centre-embedded microbottle resonators for radiative rate inhibition and temperature sensing applications
Nitrogen vacancy (NV) centres in nanodiamond (ND) are excellent emitters and possess high photoluminescence (PL) yield, photostability, and chemical inertness. The microbottle resonators (MBRs) have been fabricated on tapered silica fiber by using self-assembly technique. The MBRs exhibit whispering gallery modes (WGMs) with high quality factor (Q[jls-end-space/]∼2×[jls-end-space/]10
5). From the PL decay dynamics, the Purcell inhibition factor of ∼3 has been obtained that agrees well with the theoretical estimations. The inhibition has been explained in terms of interference between ballistic light and circulating WGMs in the MBR. The interference has been found to induce the Fano-resonances for temperature-dependent detuning of WGMs. The WGMs exhibit an enhanced red-shift (∼16.4 pm/K) on increasing the temperature to that observed for the bare NV centres (∼3.8 pm/K).
Microbottle resonators, Nitrogen vacancy centres, Purcell effect, Temperature sensing, Whispering gallery modes
9
Ray Chawdhury, Debojyoti
ea782b69-dbc3-42dd-8a80-d030aa017d43
Vincent Veluthandath, Aneesh
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Bisht, Prem Ballabh
9e617371-071b-48b1-9f33-2801ea08cace
15 January 2026
Ray Chawdhury, Debojyoti
ea782b69-dbc3-42dd-8a80-d030aa017d43
Vincent Veluthandath, Aneesh
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Senthil Murugan, Ganapathy
a867686e-0535-46cc-ad85-c2342086b25b
Bisht, Prem Ballabh
9e617371-071b-48b1-9f33-2801ea08cace
Ray Chawdhury, Debojyoti, Vincent Veluthandath, Aneesh, Senthil Murugan, Ganapathy and Bisht, Prem Ballabh
(2026)
Nitrogen vacancy centre-embedded microbottle resonators for radiative rate inhibition and temperature sensing applications.
Diamond and Related Materials, 162, , [113321].
(doi:10.1016/j.diamond.2026.113321).
Abstract
Nitrogen vacancy (NV) centres in nanodiamond (ND) are excellent emitters and possess high photoluminescence (PL) yield, photostability, and chemical inertness. The microbottle resonators (MBRs) have been fabricated on tapered silica fiber by using self-assembly technique. The MBRs exhibit whispering gallery modes (WGMs) with high quality factor (Q[jls-end-space/]∼2×[jls-end-space/]10
5). From the PL decay dynamics, the Purcell inhibition factor of ∼3 has been obtained that agrees well with the theoretical estimations. The inhibition has been explained in terms of interference between ballistic light and circulating WGMs in the MBR. The interference has been found to induce the Fano-resonances for temperature-dependent detuning of WGMs. The WGMs exhibit an enhanced red-shift (∼16.4 pm/K) on increasing the temperature to that observed for the bare NV centres (∼3.8 pm/K).
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Accepted/In Press date: 12 January 2026
e-pub ahead of print date: 12 January 2026
Published date: 15 January 2026
Keywords:
Microbottle resonators, Nitrogen vacancy centres, Purcell effect, Temperature sensing, Whispering gallery modes
Identifiers
Local EPrints ID: 509995
URI: http://eprints.soton.ac.uk/id/eprint/509995
ISSN: 0925-9635
PURE UUID: 98aa9cd2-9827-4927-88fd-3606d2ae834f
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Date deposited: 13 Mar 2026 17:30
Last modified: 14 Mar 2026 03:11
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Contributors
Author:
Debojyoti Ray Chawdhury
Author:
Aneesh Vincent Veluthandath
Author:
Ganapathy Senthil Murugan
Author:
Prem Ballabh Bisht
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