{
  "abstract": "We demonstrate the ro-vibrational state-selective preparation of CO molecules ($v$ = 0, J = 0 $\\rightarrow$ $v$ = 1, J = 1) in an internally cold molecular beam using a continuous-wave, narrow-linewidth distributed feedback type quantum cascade laser, with an output wavelength of 4.65 $μ$m. Using a modulation-free wavelength stabilization scheme, we show that population transfer to near saturation levels can be obtained with sufficient long term stability, as needed for state-resolved scattering experiments. We show preliminary results of CO molecules prepared in the $v$ = 1 state, scattering from a clean Cu(100) surface. This study showcases the promise of QCL based excitation for state-selected molecular beam based scattering experiments, especially involving transitions in the mid-infrared domain ($λ$ > 4.5 $μ$m) which are otherwise difficult to access using conventional sources.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.34948",
  "author_total": 2,
  "authors": [
    {
      "name": "Ardra P. S."
    },
    {
      "name": "Pranav R. Shirhatti"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fnhjghadmx3np.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.34948",
  "fulltext_url": null,
  "id": "fnhjghadmx3np",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.34948",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atm-clus"
    ],
    [
      "arxiv",
      "physics.chem-ph"
    ],
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "openalex",
      "1607|Spectroscopy and Laser Applications"
    ]
  ],
  "openalex": "W7224013485",
  "pdf_url": "https://arxiv.org/pdf/2610.34948",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fnhjghadmx3np.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.34948",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.34948"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.atm-clus",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "Preparing State-Selected Molecular Beams with high Efficiency using Quantum Cascade Lasers",
  "title_text": "Preparing State-Selected Molecular Beams with high Efficiency using Quantum Cascade Lasers",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/fnhjghadmx3np",
  "venue": "arXiv",
  "versions": []
}