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Scanless quantum Fourier-transform mid-infrared spectroscopy for solids and surface analysis — arXiv:2609.37281

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.37281
License (as archived): CC0-1.0
Archived: 2026-10-07T19:29:40.323Z
SHA-256 of the archived text: 832aa4b35e27f0bab74879fec93fa7bb6b61eab4b9aad4133dd90f791ceca30e
Stable URL of this page: https://metraipolis.com/documento/dc_f4c66bc8a124

How to cite

Scanless quantum Fourier-transform mid-infrared spectroscopy for solids and surface analysis — arXiv:2609.37281 — arXiv (en), https://arxiv.org/abs/2609.37281 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_f4c66bc8a124 (Metraipolis archive dc_f4c66bc8a124, sha256 832aa4b35e27f0bab74879fec93fa7bb6b61eab4b9aad4133dd90f791ceca30e)

BibTeX

@misc{dcf4c66bc8a124,
  title = {Scanless quantum Fourier-transform mid-infrared spectroscopy for solids and surface analysis — arXiv:2609.37281},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.37281},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_f4c66bc8a124; sha256 832aa4b35e27f0bab74879fec93fa7bb6b61eab4b9aad4133dd90f791ceca30e},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.37281. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Quantum infrared (IR) spectroscopy is a novel technique based on nonlinear interferometry and quantum sensing with undetected photons. In this approach, spectrally far-separated correlated photon pairs are used for detection and probing, respectively. Hence, the probing wavelength domain (mid-IR) is substantially different from the detection spectral range (near-IR), which enables shot-noise-limited and cost-effective sensing schemes attractive for applied metrology. In this paper, we implement and employ a custom-built scanless quantum Fourier-transform mid-IR (sQFTIR) microspectrometer for chemical characterization and analysis of solids and interfaces. The sQFTIR system employs spectral-domain acquisition, without the need to scan the optical delay. This results in enhanced sensitivity and short measurement times and therefore enables rapid spectral acquisitions in 100~ms spanning a spectral band from 3000 cm$^{-1}$ - 2400 cm$^{-1}$. The capabilities of our approach are demonstrated for hyperspectral mid-IR imaging of dried pharmaceuticals (insulin on a gold surface) and investigation of a security feature on a banknote. Furthermore, we demonstrate hyperspectral imaging and spectroscopy through a turbid ceramic medium.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-30 in quant-ph).
Categorie arXiv: Optics (physics.optics) ; Instrumentation and Detectors (physics.ins-det); Quantum Physics (quant-ph).
Pagina del lavoro: https://arxiv.org/abs/2609.37281 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-07T18:55:50.666Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-09-30?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).