ArticleScience advances2024
Mid-infrared single-photon upconversion spectroscopy enabled by nonlocal wavelength-to-time mapping.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Quantum Light Spectroscopy.ACS central science · 2026Review
- Reconfigurable single-shot spectroscopy reaching 86 femtometers resolution.Nature communications · 2026Article
- Photon antibunching in single-molecule vibrational sum-frequency generation.Nanophotonics (Berlin, Germany) · 2025Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ultrasensitive spectroscopy is an essential component in mid-infrared (MIR) technology. However, the drawbacks of MIR detectors pose challenges to robust MIR spectroscopy at the single-photon level. We propose an MIR single-photon frequency upconversion spectroscopy nonlocally mapping the MIR information to the time domain. Broadband MIR photons from spontaneous parametric downconversion are frequency-upconverted to the near-infrared band with quantum correlation preservation. Via the group delay of fiber, the MIR spectral information within a 1.18-micrometer bandwidth of 2.76 to 3.94 micrometers is then successfully projected to arrival times of correlated photon pairs. Under the conditions of 6.4 × 10
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Registered trials
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