{"paper":{"title":"Miniature cavity-enhanced diamond magnetometer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.ins-det"],"primary_cat":"quant-ph","authors_text":"4, 5, 6) ((1) Johannes Gutenberg-Universit\\\"at Mainz (2) Niels Bohr Institute, Arne Wickenbrock (1), Berkeley (6) Nuclear Science Division, Dmitry Budker (1, Georgios Chatzidrosos (1), Kasper Jensen (2), Lawrence Berkeley National Laboratory), Lykourgos Bougas (1), Nathan Leefer (1), Teng Wu (1), UMR 6082 FOTON (4) Helmholtz Institut Mainz (5) Department of Physics, University of California, University of Copenhagen (3) CNRS, Yannick Dumeige (3)","submitted_at":"2017-06-07T14:14:31Z","abstract_excerpt":"We present a highly sensitive miniaturized cavity-enhanced room-temperature magnetic-field sensor based on nitrogen-vacancy (NV) centers in diamond. The magnetic resonance signal is detected by probing absorption on the 1042\\,nm spin-singlet transition. To improve the absorptive signal the diamond is placed in an optical resonator. The device has a magnetic-field sensitivity of 28 pT/$\\sqrt{\\rm{Hz}}$, a projected photon shot-noise-limited sensitivity of 22 pT/$\\sqrt{\\rm{Hz}}$ and an estimated quantum projection-noise-limited sensitivity of 0.43 pT/$\\sqrt{\\rm{Hz}}$ with the sensing volume of $\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02201","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}