Correlated-photon time- and frequency-resolved optical spectroscopy.

ABSTRACT: Classical time-resolved optical spectroscopy experiments are performed using sequences of ultrashort light pulses, with photon fluxes incident on the sample which are many orders of magnitude higher than real-world conditions corresponding to sunlight illumination. Spectroscopy and microscopy schemes that use quantum states of light have been widely described theoretically with fewer experimental demonstrations that typically require very long measurements that can extend for hours or more. Here, we show that time-resolved spectroscopy with quantum light can be performed without compromising measurement time or wavelength tunability, recording a fluorescence lifetime trace in biological samples in less than a second with acceptable signal-to-noise ratio. Starting from spontaneous parametri

SUBMITTER: Alvarez-Mendoza R 

PROVIDER: S-EPMC12484877 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature