Entangled photons enabled ultrafast stimulated Raman spectroscopy for molecular dynamics.

ABSTRACT: Quantum entanglement has emerged as a great resource for studying the interactions between molecules and radiation. We propose a new scheme of stimulated Raman scattering with entangled photons. A quantum ultrafast Raman spectroscopy is developed for condensed-phase molecules, to monitor the exciton populations and coherences. Analytic results are obtained, showing an entanglement-enabled time-frequency scale not attainable by classical light. The Raman signal presents an unprecedented selectivity of molecular correlation functions, as a result of the Hong-Ou-Mandel interference. Our work suggests a new paradigm of using an unconventional interferometer as part of spectroscopy, with the potential to unveil advanced information about complex materials.

SUBMITTER: Fan JJ 

PROVIDER: S-EPMC11247098 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature