{
  "id": "1802.00410",
  "version": "v1",
  "published": "2018-02-01T17:36:12.000Z",
  "updated": "2018-02-01T17:36:12.000Z",
  "title": "Quantum-Enhanced Plasmonic Sensing",
  "authors": [
    "Mohammadjavad Dowran",
    "Ashok Kumar",
    "Benjamin J. Lawrie",
    "Raphael C. Pooser",
    "Alberto M. Marino"
  ],
  "categories": [
    "quant-ph",
    "physics.optics"
  ],
  "abstract": "Quantum resources can enhance the sensitivity of a device beyond the classical shot noise limit and, as a result, revolutionize the field of metrology through the development of quantum-enhanced sensors. In particular, plasmonic sensors, which are widely used in biological and chemical sensing applications, offer a unique opportunity to bring such an enhancement to real-life devices. Here, we use bright entangled twin beams to enhance the sensitivity of a plasmonic sensor used to measure local changes in refractive index. We demonstrate a 56% quantum enhancement in the sensitivity of state-of-the-art plasmonic sensor with measured sensitivities on the order of $10^{-10}$RIU$/\\sqrt{\\textrm{Hz}}$, nearly 5 orders of magnitude better than previous proof-of-principle implementations of quantum-enhanced plasmonic sensors. These results promise significant enhancements in ultratrace label free plasmonic sensing and will find their way into areas ranging from biomedical applications to chemical detection.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-02-01T17:36:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum-enhanced plasmonic sensing",
      "sensitivity",
      "results promise significant enhancements",
      "bright entangled twin beams",
      "state-of-the-art plasmonic sensor"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}