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High speed determination of laser wavelength using Poincaré descriptors of speckle
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dc.contributor.author | O'Donnell, Laura | |
dc.contributor.author | Dholakia, Kishan | |
dc.contributor.author | Bruce, Graham David | |
dc.date.accessioned | 2020-11-11T00:38:57Z | |
dc.date.available | 2020-11-11T00:38:57Z | |
dc.date.issued | 2020-03-15 | |
dc.identifier | 260974730 | |
dc.identifier | ff911358-648f-45ef-b8bc-768971e5d69d | |
dc.identifier | 85075527040 | |
dc.identifier | 000505990000015 | |
dc.identifier.citation | O'Donnell , L , Dholakia , K & Bruce , G D 2020 , ' High speed determination of laser wavelength using Poincaré descriptors of speckle ' , Optics Communications , vol. 459 , 124906 . https://doi.org/10.1016/j.optcom.2019.124906 | en |
dc.identifier.issn | 0030-4018 | |
dc.identifier.other | ORCID: /0000-0003-3403-0614/work/64697857 | |
dc.identifier.uri | https://hdl.handle.net/10023/20944 | |
dc.description | Funding: Leverhulme Trust Research Project Grant RPG-2017-197. | en |
dc.description.abstract | Laser speckle can provide a powerful tool that may be used for metrology, for example measurements of the incident laser wavelength with a resolution beyond that which may be achieved in a commercial device. However, to realise highest resolution requires advanced multi-variate analysis techniques, which limit the acquisition rate of such a wavemeter. Here we show an arithmetically simple method to measure wavelength changes with dynamic speckle, based on a Poincarè descriptor of the speckle pattern. We demonstrate the measurement of wavelength changes at femtometer-level with a measurement time reduced by two orders of magnitude compared to the previous state-of-the-art, which offers promise for applications such as speckle-based laser wavelength stabilisation. | |
dc.format.extent | 5 | |
dc.format.extent | 310635 | |
dc.language.iso | eng | |
dc.relation.ispartof | Optics Communications | en |
dc.subject | Speckle | en |
dc.subject | Wavelength measurement | en |
dc.subject | Poincaré descriptors | en |
dc.subject | QC Physics | en |
dc.subject | T Technology | en |
dc.subject | DAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | T | en |
dc.title | High speed determination of laser wavelength using Poincaré descriptors of speckle | en |
dc.type | Journal article | en |
dc.contributor.sponsor | The Leverhulme Trust | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis | en |
dc.contributor.institution | University of St Andrews. Centre for Biophotonics | en |
dc.contributor.institution | University of St Andrews. Biomedical Sciences Research Complex | en |
dc.identifier.doi | 10.1016/j.optcom.2019.124906 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2020-11-11 | |
dc.identifier.grantnumber | RPG-2017-197 | en |
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