{
  "abstract": "We investigate an all-optical scheme for high-sensitivity measurements of the Earth's scale magnetic field ($B$). The scheme is based on the Bell-Bloom technique with frequency-modulated light. A single elliptically polarized light beam is used both for pumping the alkali-metal atoms and probing Larmor precession of their spins under the external magnetic field. In contrast to many other high-sensitivity magnetometry schemes based on nonlinear polarization rotation of the light, the proposed approach enables the observation of magnetic resonance via changes in the light-beam ellipticity parameter. The approach has been validated in experiments with a vertical-cavity surface-emitting laser, irradiating a $0.125$ cm$^3$ cesium vapor cell filled with a buffer gas. In the current experimental conditions, the achieved sensitivity is estimated at $220$ fT/$\\surd$Hz under $B$$\\,\\approx\\,$$50$ $μ$T, while the shot-noise floor corresponds to $\\approx\\,$$20$ fT/$\\surd$Hz. The bandwidth is estimated at $\\approx\\,$$1$ kHz. The proposed simple and robust single-beam scheme is well suited for miniaturization and is therefore particularly promising for the development of compact, highly sensitive, low-power-consumption atomic magnetometers for a wide range of applications in the geomagnetic field.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.08031",
  "author_total": 13,
  "authors": [
    {
      "name": "D. V. Brazhnikov"
    },
    {
      "name": "A. O. Makarov"
    },
    {
      "name": "K. S. Kozlova"
    },
    {
      "name": "M. A. Rusina"
    },
    {
      "name": "A. M. Mikhailov"
    },
    {
      "name": "V. A. Vasiliev"
    },
    {
      "name": "E. V. Tanakov"
    },
    {
      "name": "A. N. Goncharov"
    },
    {
      "name": "M. A. Bobrov"
    },
    {
      "name": "Ya. N. Kovach"
    },
    {
      "name": "A. A. Blokhin"
    },
    {
      "name": "N. A. Maleev"
    },
    {
      "name": "S. A. Blokhin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b2ncqgwr6pw0r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.08031",
  "fulltext_url": null,
  "id": "b2ncqgwr6pw0r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.08031",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atom-ph"
    ],
    [
      "openalex",
      "3107|Atomic and Subatomic Physics Research"
    ]
  ],
  "openalex": "W7221025348",
  "pdf_url": "https://arxiv.org/pdf/2610.08031",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b2ncqgwr6pw0r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.08031",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.08031"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.atom-ph",
      "subfield": "amo"
    }
  ],
  "title": "Total-field atomic magnetometry using an elliptically-polarized frequency-modulated light beam for geomagnetic-field applications",
  "title_text": "Total-field atomic magnetometry using an elliptically-polarized frequency-modulated light beam for geomagnetic-field applications",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/b2ncqgwr6pw0r",
  "venue": "arXiv",
  "versions": []
}