{
  "abstract": "Bolometers transduce incident electromagnetic radiation into measurable electrical signals via radiation-induced heating in thermo-resistive materials. They are uniquely capable of detecting low-energy photons without cryogenic cooling, and are widely deployed for uncooled long-wave infrared (LWIR) radiation detection and thermal imaging. Although their fundamental detection limit is set by the thermodynamic fluctuations, state-of-the-art uncooled bolometers still operate well above this limit due to the presence of Johnson noise, 1/f noise and noises from the readout circuits. Here, we address this challenge by introducing a new uncooled LWIR bolometer concept---the silicon avalanche transition edge (SATE) bolometer. Operating near the steep current transition edge associated with avalanche breakdown, the device exhibits an ultra-high, positive temperature coefficient of resistance (TCR) of 330 %/K, greatly suppressing the impacts of other noise sources. Even without any thermal insulation structures, the SATE bolometer delivers a high room-temperature responsivity up to 160 mA/W for 9.5 $μ$m radiation, a noise equivalent power of 370 pW/$\\sqrt{\\mathrm{Hz}}$, and a strong electro-thermal feedback enlarged bandwidth of 77 kHz---performance unattainable with conventional bolometer materials with a TCR of $-1\\sim-3\\%$/K. Our work establishes a promising thermo-electric transduction mechanism toward high-sensitivity, high-speed room-temperature thermal imaging and infrared spectroscopy using CMOS technology.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.17821",
  "author_total": 7,
  "authors": [
    {
      "name": "Wenjun Deng"
    },
    {
      "name": "Renwen Yu"
    },
    {
      "name": "Guanyu Han"
    },
    {
      "name": "Ziyao Feng"
    },
    {
      "name": "Yu Wang"
    },
    {
      "name": "Shanhui Fan"
    },
    {
      "name": "Qiushi Guo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ae6375qw8820j.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.17821",
  "fulltext_url": null,
  "id": "ae6375qw8820j",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.17821",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.17821",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ae6375qw8820j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.17821",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.17821"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Silicon avalanche transition edge bolometer: approaching the thermodynamic limit for uncooled long-wave infrared detection",
  "title_text": "Silicon avalanche transition edge bolometer: approaching the thermodynamic limit for uncooled long-wave infrared detection",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/ae6375qw8820j",
  "venue": "arXiv",
  "versions": []
}