{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670320595217792.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1063/1.5095241"}},{"identifier":{"@type":"URI","@value":"https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/1.5095241/19767868/231103_1_online.pdf"}}],"dc:title":[{"@value":"Nanotesla sensitivity magnetic field sensing using a compact diamond nitrogen-vacancy magnetometer"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Solid state sensors utilizing diamond nitrogen-vacancy (NV) centers are a promising sensing platform that can provide high sensitivity and spatial resolution at high precision. Such sensors have been realized in bulky laboratory-based forms; however, practical applications demand a miniaturized, portable sensor that can function in a wide range of environmental conditions. Here, we demonstrate such a diamond NV magnetic field sensor. The sensor head fits inside a 11×7×7 cm3 3D-printed box and exhibits sub-10 nT/Hz sensitivity over a 125 Hz bandwidth. We achieve efficient fluorescence collection using an optical filter and diode in contact with the diamond, which is cut at the Brewster angle to maximize the coupling of 532 nm pump light. We discuss the potential of this flexible approach to achieve sub-nT/Hz shot noise limited sensitivity suitable for detection of a wide range of low-level magnetic fields, particularly those from electrical power systems and from biological sources.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670320595217794","@type":"Researcher","foaf:name":[{"@value":"James L. Webb"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217792","@type":"Researcher","foaf:name":[{"@value":"Joshua D. Clement"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217664","@type":"Researcher","foaf:name":[{"@value":"Luca Troise"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217795","@type":"Researcher","foaf:name":[{"@value":"Sepehr Ahmadi"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217793","@type":"Researcher","foaf:name":[{"@value":"Gustav Juhl Johansen"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217797","@type":"Researcher","foaf:name":[{"@value":"Alexander Huck"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320595217796","@type":"Researcher","foaf:name":[{"@value":"Ulrik L. Andersen"}],"jpcoar:affiliationName":[{"@value":"Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark , Fysikvej 309, 2800 Kgs. Lyngby, Denmark"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00036951"},{"@type":"EISSN","@value":"10773118"}],"prism:publicationName":[{"@value":"Applied Physics Letters"}],"dc:publisher":[{"@value":"AIP Publishing"}],"prism:publicationDate":"2019-06-10","prism:volume":"114","prism:number":"23","prism:startingPage":"231103"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/4.0/","https://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/1.5095241/19767868/231103_1_online.pdf"}],"createdAt":"2019-06-13","modifiedAt":"2025-05-29","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142706650496","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Benchmark for Synthesized Diamond Sensors Based on Isotopically Engineered Nitrogen‐Vacancy Spin Ensembles for Magnetometry Applications"}]},{"@id":"https://cir.nii.ac.jp/crid/1360290617481191296","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Gradiometer Using Separated Diamond Quantum Magnetometers"}]},{"@id":"https://cir.nii.ac.jp/crid/1360294643705145216","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Composite Quantum Sensors Based on Fluorescent Nanodiamonds for Intracellular Controlled Heating in Living Cells"}]},{"@id":"https://cir.nii.ac.jp/crid/1360298345076142336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Electroplated FePt Films for Micromechanical Magnetic Sensors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360568468777052672","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580232169910912","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A home-made portable device based on Arduino Uno for pulsed magnetic resonance of NV centers in diamond"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1063/1.5095241"},{"@type":"CROSSREF","@value":"10.1002/qute.202000074_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"},{"@type":"CROSSREF","@value":"10.3390/s21030977_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"},{"@type":"CROSSREF","@value":"10.1021/acsanm.1c00334_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"},{"@type":"CROSSREF","@value":"10.1063/1.5128716_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"},{"@type":"CROSSREF","@value":"10.1063/5.0089161_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"},{"@type":"CROSSREF","@value":"10.1002/pssa.202000547_references_DOI_J63cREnn0s7nmQQNwGtpNEGvEtf"}]}