dc.contributor.author
Künstner, Silvio
dc.contributor.author
McPeak, Joseph E.
dc.contributor.author
Chu, Anh
dc.contributor.author
Kern, Michal
dc.contributor.author
Wick, Markus
dc.contributor.author
Dinse, Klaus-Peter
dc.contributor.author
Anders, Jens
dc.contributor.author
Naydenov, Boris
dc.contributor.author
Lips, Klaus
dc.date.accessioned
2024-10-22T09:54:50Z
dc.date.available
2024-10-22T09:54:50Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/45347
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-45059
dc.description.abstract
Electron paramagnetic resonance–on-a-chip (EPRoC) devices use small voltage-controlled oscillators (VCOs) for both the excitation and detection of the EPR signal, allowing access to unique sample environments by lifting the restrictions imposed by resonator-based EPR techniques. EPRoC devices have been successfully used at multiple frequencies (7 to 360 gigahertz) and have demonstrated their utility in producing high-resolution spectra in a variety of spin centers. To enable quantitative measurements using EPRoC devices, the spatial distribution of the B1 field produced by the VCOs must be known. As an example, the field distribution of a 12-coil VCO array EPRoC operating at 14 gigahertz is described in this study. The frequency modulation–recorded EPR spectra of a “point”-like and a thin-film sample were investigated while varying the position of both samples in three directions. The results were compared to COMSOL simulations of the B1-field intensity. The EPRoC array sensitive volume was determined to be ~19 nanoliters. Implications for possible EPR applications are discussed.
en
dc.format.extent
14 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Microwave field mapping
en
dc.subject
EPR-on-a-chip experiments
en
dc.subject
voltage-controlled oscillators
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Microwave field mapping for EPR-on-a-chip experiments
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
eado5467
dcterms.bibliographicCitation.doi
10.1126/sciadv.ado5467
dcterms.bibliographicCitation.journaltitle
Science Advances
dcterms.bibliographicCitation.number
33
dcterms.bibliographicCitation.volume
10
dcterms.bibliographicCitation.url
https://doi.org/10.1126/sciadv.ado5467
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2375-2548
refubium.resourceType.provider
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