DOE OSTI · 3017574
Enhancing spectroscopy and microscopy with emerging methods in photon correlation and quantum illumination
Abstract
Quantum optics has led to important advancements in our ability to prepare and detect correlations between individual photons. Its principles are increasingly translated into nanoscale characterization tools, furthering methods in spectroscopy, microscopy and metrology. Here, in this Review, we discuss the rapid progress in this field driven by advanced technologies of single-photon detectors and quantum-light sources, including time-resolved single-photon counting cameras, superconducting nanowire single-photon detectors and entangled photon sources of increasing brightness. We emphasize emerging applications in super-resolution microscopy, measurements below classical noise limits and photon-number-resolved spectroscopy—a powerful paradigm for the characterization of nanoscale electronic materials. We conclude by discussing key technological challenges and future opportunities in materials science and bionanophotonics alike.
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Tsao, Chieh [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0009000888673387), Ling, Haonan [University of California, Berkeley, CA (United States); University of Central Florida, Orlando, FL (United States)], Hinkle, Alex [University of California, Berkeley, CA (United States)] (ORCID:0000000261854478), Chen, Yifan [University of California, Berkeley, CA (United States)], Jha, Keshav Kumar [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Yan, Zhen-Li [University of California, Berkeley, CA (United States)], Utzat, Hendrik [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000329010141). 2025-08-20. Enhancing spectroscopy and microscopy with emerging methods in photon correlation and quantum illumination. https://doi.org/10.1038/s41565-025-01992-3
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