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Proceedings Paper

Cooperatively-enhanced atomic dipole forces in optically trapped nanodiamonds containing NV centres, in liquid
Author(s): Carlo Bradac; Mathieu L. Juan; Mattias Johnsson; Benjamin Besga; M. van Breugel; B. Baragiola; R. Martin; Gavin Brennen; Gabriel Molina-Terriza; Thomas Volz
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Paper Abstract

We report on a new regime for optical trapping of diamond nanoparticles in liquid. While holding a nanodiamond (~150 nm) containing many NV centres (~10^3) at the focus of classical optical tweezers, we add a second laser slightly detuned from the dipole transition of the NVs. We measure a change in trap stiffness of ~10%. Remarkably, we show that our results must include collective effects – ‘superradiance’ – between colour centres, which has never been reported before for solid-state systems at room temperature. We discuss how these resonant forces depend on (and can be enhanced by) the type, number, dipole strength and spectral linewidth of the centres.

Paper Details

Date Published: 9 December 2016
PDF: 1 pages
Proc. SPIE 10013, SPIE BioPhotonics Australasia, 1001334 (9 December 2016); doi: 10.1117/12.2242963
Show Author Affiliations
Carlo Bradac, Macquarie Univ. (Australia)
Mathieu L. Juan, Macquarie Univ. (Australia)
Mattias Johnsson, Macquarie Univ. (Australia)
Benjamin Besga, Macquarie Univ. (Australia)
M. van Breugel, Macquarie Univ. (Australia)
B. Baragiola, Macquarie Univ. (Australia)
R. Martin, Macquarie Univ. (Australia)
Gavin Brennen, Macquarie Univ. (Australia)
Gabriel Molina-Terriza, Macquarie Univ. (Australia)
Thomas Volz, Macquarie Univ. (Australia)

Published in SPIE Proceedings Vol. 10013:
SPIE BioPhotonics Australasia
Mark R. Hutchinson; Ewa M. Goldys, Editor(s)

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