{
  "abstract": "A parallel heterodyne light-induced thermoelastic spectroscopy (PH-LITES) sensor is proposed for high-speed and high-sensitivity multi-gas detection for the first time. Within the collaborative signal enhancement architecture (CSEA), high sensitivity and high-speed detection are achieved at the physical layer. A self-designed cylindrical multi-pass cell (MPC) with a recorded high optical path length to volume ratio (OPL/V = 37.4 cm –2 ) and a four‑tine quartz tuning fork (QTF) with a low resonant frequency ( f 0 = ~7.9 kHz) work synergistically to enhance detection responsivity, establishing a robust foundation for highly sensitive detection of low-concentration gas mixtures. High‑speed capability is enabled by parallel heterodyne modulation, where a single QTF is excited to generate a composite transient response signal, allowing for the rapid, simultaneous acquisition of spectral information from multiple gases. At the information layer, intelligent processing is implemented via a collaborative intelligent processing architecture (CIPA) integrating convolutional neural networks (CNN), a hybrid attention mechanism (HAM), and bidirectional long short-term memory (BiLSTM). The CNN-HAM-BiLSTM architecture performs feature extraction, attention-based enhancement, and temporal modeling to enable accurate concentration retrieval from the parallel spectra derived from a single QTF output. Experimental validation using methane (CH 4 ) and acetylene (C 2 H 2 ) achieved minimum detection limits (MDLs) of 378 ppb and 285 ppb, respectively, within a 4 s scanning time. The proposed system offers an efficient solution for applications requiring rapid and sensitive multi-gas detection.",
  "abstract_shown": true,
  "affiliations": [
    "National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin, 150000, China",
    "Zhengzhou Advanced Research Institute of Harbin Institute of Technology, Zhengzhou, 450000, China",
    "National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin, 150000, China. mayufei@hit.edu.cn",
    "Zhengzhou Advanced Research Institute of Harbin Institute of Technology, Zhengzhou, 450000, China. mayufei@hit.edu.cn"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Haiyue Sun",
      "orcid": "0009-0003-8260-3795"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Shunda Qiao",
      "orcid": "0000-0001-8709-0915"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Y Q He",
      "orcid": "0000-0002-9994-2051"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Yuanzhi Wang"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Jinfeng Hou",
      "orcid": "0009-0007-0124-1614"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Chu Zhang"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Yongkang Dong",
      "orcid": "0000-0001-8985-9310"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Yufei Ma",
      "orcid": "0000-0002-9788-7984"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/14d4qenn6nrxc.bib",
  "cited_by": 28,
  "doi": "10.1038/s41377-026-02385-4",
  "fulltext_url": null,
  "id": "14d4qenn6nrxc",
  "issns": [
    "2047-7538",
    "2095-5545"
  ],
  "landing_url": "https://doi.org/10.1038/s41377-026-02385-4",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1607|Spectroscopy and Laser Applications"
    ]
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  "openalex": "W7166578122",
  "pdf_url": "https://www.nature.com/articles/s41377-026-02385-4.pdf",
  "pmcid": "PMC13316031",
  "pmid": "42373617",
  "published": "2026-06-29",
  "publisher": "Springer Nature",
  "ris": "https://research.draconitic.com/paper/14d4qenn6nrxc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:26:44Z",
      "native_id": "W7166578122",
      "source": "openalex",
      "url": "https://doi.org/10.1038/s41377-026-02385-4"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1607|Spectroscopy and Laser Applications",
      "subfield": "physical"
    }
  ],
  "title": "High-speed and high-sensitivity multi-gas detection based on parallel heterodyne LITES sensor",
  "title_text": "High-speed and high-sensitivity multi-gas detection based on parallel heterodyne LITES sensor",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T13:20:39Z",
  "url": "https://research.draconitic.com/paper/14d4qenn6nrxc",
  "venue": "Light Science & Applications",
  "versions": []
}