Different sensitivities of two optical magnetometers realized in the same experimental arrangement

doi:10.1038/s41598-019-39282-3

Different sensitivities of two optical magnetometers realized in the same experimental arrangement

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Different sensitivities of two optical magnetometers realized in the same experimental arrangement

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dc.contributor.author	Put, Piotr [USOS161170]	pl
dc.contributor.author	Popiołek, Kacper [USOS230817]	pl
dc.contributor.author	Pustelny, Szymon [SAP11019465]	pl
dc.date.accessioned	2019-04-10T12:35:11Z
dc.date.available	2019-04-10T12:35:11Z
dc.date.issued	2019	pl
dc.identifier.uri	https://ruj.uj.edu.pl/xmlui/handle/item/72718
dc.language	eng	pl
dc.rights	Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/pl/legalcode	*
dc.title	Different sensitivities of two optical magnetometers realized in the same experimental arrangement	pl
dc.type	JournalArticle	pl
dc.abstract.en	In this article, operation of optical magnetometers detecting static (DC) and oscillating (AC) magnetic fields is studied and comparison of the devices is performed. To facilitate the comparison, the analysis is carried out in the same experimental setup, exploiting nonlinear magneto-optical rotation. In such a system, a control over static-field magnitude or oscillating-field frequency provides detection of strength of the DC or AC fields. Polarization rotation is investigated for various light intensities and AC-field amplitudes, which allows to determine optimum sensitivity to both fields. With the results, we demonstrate that under optimal conditions the AC magnetometer is about ten times more sensitive than its DC counterpart, which originates from different response of the atoms to the fields. Bandwidth of the magnetometers is also analyzed, revealing its different dependence on the light power. Particularly, we demonstrate that bandwidth of the AC magnetometer can be significantly increased without strong deterioration of the magnetometer sensitivity. This behavior, combined with the ability to tune the resonance frequency of the AC magnetometer, provide means for ultra-sensitive measurements of the AC field in a broad but spectrally-limited range, where detrimental role of static-field instability is significantly reduced.	pl
dc.description.volume	9	pl
dc.identifier.doi	10.1038/s41598-019-39282-3	pl
dc.identifier.eissn	2045-2322	pl
dc.title.journal	Scientific Reports	pl
dc.language.container	eng	pl
dc.affiliation	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego	pl
dc.subtype	Article	pl
dc.identifier.articleid	2537	pl
dc.rights.original	CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0	pl
dc.identifier.project	ROD UJ / OP	pl
.pointsMNiSW	[2019 A]: 140