{
  "abstract": "Ultrasound is a noninvasive, real-time, and therefore widely used imaging modality; yet its application in cellular and sub-cellular biology is significantly limited by rapidly increasing acoustic losses in aqueous solutions with decreasing wavelength. Here we introduce a nano-optomechanical cavity transducer platform to generate and detect ultrasound in aqueous solutions with a sub-micron acoustic wavelength. We analyze the full signal pathway through a combination of finite element method modeling and the coupled differential equations that describe the dispersive optomechanical interaction. Our findings project a signal-to-noise ratio in the thousands at ~5 GHz, limited by diffraction losses and thermal-acoustic noise. This work establishes a viable path towards optomechanical ultrasound systems capable of label-free imaging at cellular and sub-cellular length scales while also providing a broader framework for optomechanical crystal device operation in aqueous environments relevant to biochemical sensing, medical diagnostics, underwater acoustic sensing, and nanoscale imaging.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.02936",
  "author_total": 5,
  "authors": [
    {
      "name": "Lisa Hackett"
    },
    {
      "name": "Chang Ge"
    },
    {
      "name": "Alex Miera"
    },
    {
      "name": "Brandon Smith"
    },
    {
      "name": "Matt Eichenfield"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2dfcpsnmsja7v.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.02936",
  "fulltext_url": null,
  "id": "2dfcpsnmsja7v",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.02936",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.app-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Mechanical and Optical Resonators"
    ]
  ],
  "openalex": "W7167633861",
  "pdf_url": "https://arxiv.org/pdf/2607.02936",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2dfcpsnmsja7v.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2607.02936",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.02936"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Optomechanical transducers for gigahertz frequency ultrasound imaging",
  "title_text": "Optomechanical transducers for gigahertz frequency ultrasound imaging",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/2dfcpsnmsja7v",
  "venue": "arXiv",
  "versions": []
}