Frangeskou, AC;
Rahman, ATMA;
Gines, L;
Mandal, S;
Williams, OA;
Barker, PF;
Morley, GW;
(2018)
Pure nanodiamonds for levitated optomechanics in vacuum.
New Journal of Physics
, 20
, Article 043016. 10.1088/1367-2630/aab700.
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Abstract
Optical trapping at high vacuum of a nanodiamond containing a nitrogen vacancy centre would provide a test bed for several new phenomena in fundamental physics. However, the nanodiamonds used so far have absorbed too much of the trapping light, heating them to destruction (above 800 K) except at pressures above ~10 mbar where air molecules dissipate the excess heat. Here we show that milling diamond of 1000 times greater purity creates nanodiamonds that do not heat up even when the optical intensity is raised above 700 GW m−2 below 5 mbar of pressure.
| Type: | Article |
|---|---|
| Title: | Pure nanodiamonds for levitated optomechanics in vacuum |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1367-2630/aab700 |
| Publisher version: | https://doi.org/10.1088/1367-2630/aab700 |
| Language: | English |
| Additional information: | © 2018 The Author(s). Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | optomechanics, optical tweezers, nanodiamond, nitrogen vacancy centres, diamond |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10053388 |
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