ArticleProceedings of the National Academy of Sciences of the United States of America2021
Multidimensional four-wave mixing signals detected by quantum squeezed light.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 27 citations in OpenAlex.
- Quantum-enhanced coherent Raman spectroscopy with broadband squeezed-light detection.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Correlated-photon time- and frequency-resolved optical spectroscopy.Nature communications · 2025Article
- Ultra-stable and high-performance squeezed vacuum source enabled via artificial intelligence control.Science advances · 2025Article
- Harnessing quantum light for microscopic biomechanical imaging of cells and tissues.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Article
- The path toward quantum advantage in optical spectroscopy of materials.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Multidimensional four-wave mixing signals detected by quantum squeezed light.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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7 authors at 4 institutions in 3 countries.
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Abstract
Four-wave mixing (FWM) of optical fields has been extensively used in quantum information processing, sensing, and memories. It also forms a basis for nonlinear spectroscopies such as transient grating, stimulated Raman, and photon echo where phase matching is used to select desired components of the third-order response of matter. Here we report an experimental study of the two-dimensional quantum noise intensity difference spectra of a pair of squeezed beams generated by FWM in hot Rb vapor. The measurement reveals details of the [Formula: see text] susceptibility dressed by the strong pump field which induces an AC Stark shift, with higher spectral resolution compared to classical measurements of probe and conjugate beam intensities. We demonstrate how quantum correlations of squeezed light can be utilized as a spectroscopic tool which unlike their classical counterparts are robust to external noise.
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