{
  "abstract": "Achieving high-lying vibrational states is essential for actively controlling molecular reactions. We demonstrate vibrational ladder climbing of CO adsorbed on Pt(111) within the plasmonic tip-substrate nanogap formed in a scanning tunneling microscope, detected via tip-enhanced sum-frequency generation (TE-SFG). As the infrared pulse energy increases, hot-band peaks appear sequentially up to the 3-4 transition, indicating the stepwise population of higher vibrational states. Numerical analysis using the optical Bloch equations captures the observed energy dependence of these features. These results demonstrate the capability of TE-SFG to probe vibrational ladder climbing in surface molecular systems and suggest a promising route toward accessing high-lying vibrational states and controlling vibrational excitation at the nanoscale.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Physical Review Letters (2026)",
  "arxiv": "2608.01698",
  "author_total": 4,
  "authors": [
    {
      "name": "Tatsuto Mochizuki"
    },
    {
      "name": "Shota Takahashi"
    },
    {
      "name": "Atsunori Sakurai"
    },
    {
      "name": "Toshiki Sugimoto"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3gqjq7fsxg62g.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.01698",
  "fulltext_url": null,
  "id": "3gqjq7fsxg62g",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.01698",
  "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",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "physics.chem-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.01698",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3gqjq7fsxg62g.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2608.01698",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.01698"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Tip-Enhanced Vibrational Ladder Climbing in Surface Molecular System",
  "title_text": "Tip-Enhanced Vibrational Ladder Climbing in Surface Molecular System",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/3gqjq7fsxg62g",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/26tr-1jdy",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}