{
  "annotation_id": "a572be61-7b34-46a2-896d-d7c91c0b0b9c",
  "date_created": "2026-03-02T18:01:14.624000Z",
  "date_modified": "2026-03-02T18:01:14.624000Z",
  "file_hash": "9a21de51076df62d9bd6310786037e0e9f97586363457823182586aaf2ca0f52",
  "private": false,
  "record": {
    "abstract": "The ultimate sensitivity of optical detection is limited by the\nsignal-to-noise ratio (SNR). The first part of the paper shows that coherence\nplays an important role in the noise analysis. Although interference between an\nauxiliary wave and a signal wave makes the photo detector response to the\nsignal stronger, the coherent noise also enhances. This makes insignificant the\ngain in the SNR. Pulsed-excitation gated-detection (PEGD) is described and\nanalyzed in the second part to show that 1) a high brightness of detected\nparticles is not a prerequisite for a high SNR, 2) optimized parameters of the\nPEGD protocol demonstrate interesting bifurcation making a sudden jump from an\neffectively continuous regime to PEGD, and 3) photo-physical properties of NV\ncenters in nano crystals of diamond approach those ideal for PEGD.",
    "arxiv_id": "physics/0612078",
    "authors": [
      "Taras Plakhotnik"
    ],
    "categories": [
      "physics.optics"
    ],
    "title": "Noise minimization in optical detection of small particle",
    "url": "https://arxiv.org/abs/physics/0612078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1a24f7e9-909f-4ff9-8f45-e31314abfbee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}