Polymer encapsulated microcavity optomechanical magnetometer

Abstract We demonstrate a magnetometer using polymer encapsulated whispering-gallery-mode microcavity actuated by a micro-magnet. The magnetic field induces force on the micro-magnet causing deformation in the polymer around the microcavity. Subsequently the microcavity detects the change in the ref...

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Auteurs principaux:	Jiangang Zhu, Guangming Zhao, Igor Savukov, Lan Yang
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/e1f2f063970d4b6485e4a22a3f7c4bbf
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spelling	oai:doaj.org-article:e1f2f063970d4b6485e4a22a3f7c4bbf2021-12-02T16:06:37ZPolymer encapsulated microcavity optomechanical magnetometer10.1038/s41598-017-08875-12045-2322https://doaj.org/article/e1f2f063970d4b6485e4a22a3f7c4bbf2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08875-1https://doaj.org/toc/2045-2322Abstract We demonstrate a magnetometer using polymer encapsulated whispering-gallery-mode microcavity actuated by a micro-magnet. The magnetic field induces force on the micro-magnet causing deformation in the polymer around the microcavity. Subsequently the microcavity detects the change in the refractive index of the polymer resulted from the deformation. This magnetometer works in the frequency range of hertz-to-kilohertz range and achieves a sensitivity of 880 pT/Hz1/2 at 200 Hz in a micro-scale sensor volume. Polymer encapsulation of the magnetometer and fiber optical connection ensures environmental robustness and practicality of the sensor.Jiangang ZhuGuangming ZhaoIgor SavukovLan YangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jiangang Zhu Guangming Zhao Igor Savukov Lan Yang Polymer encapsulated microcavity optomechanical magnetometer
description	Abstract We demonstrate a magnetometer using polymer encapsulated whispering-gallery-mode microcavity actuated by a micro-magnet. The magnetic field induces force on the micro-magnet causing deformation in the polymer around the microcavity. Subsequently the microcavity detects the change in the refractive index of the polymer resulted from the deformation. This magnetometer works in the frequency range of hertz-to-kilohertz range and achieves a sensitivity of 880 pT/Hz1/2 at 200 Hz in a micro-scale sensor volume. Polymer encapsulation of the magnetometer and fiber optical connection ensures environmental robustness and practicality of the sensor.
format	article
author	Jiangang Zhu Guangming Zhao Igor Savukov Lan Yang
author_facet	Jiangang Zhu Guangming Zhao Igor Savukov Lan Yang
author_sort	Jiangang Zhu
title	Polymer encapsulated microcavity optomechanical magnetometer
title_short	Polymer encapsulated microcavity optomechanical magnetometer
title_full	Polymer encapsulated microcavity optomechanical magnetometer
title_fullStr	Polymer encapsulated microcavity optomechanical magnetometer
title_full_unstemmed	Polymer encapsulated microcavity optomechanical magnetometer
title_sort	polymer encapsulated microcavity optomechanical magnetometer
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e1f2f063970d4b6485e4a22a3f7c4bbf
work_keys_str_mv	AT jiangangzhu polymerencapsulatedmicrocavityoptomechanicalmagnetometer AT guangmingzhao polymerencapsulatedmicrocavityoptomechanicalmagnetometer AT igorsavukov polymerencapsulatedmicrocavityoptomechanicalmagnetometer AT lanyang polymerencapsulatedmicrocavityoptomechanicalmagnetometer
_version_	1718384995277471744

Polymer encapsulated microcavity optomechanical magnetometer

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