Enhanced Chemical Sensing with Multiorder Coherent Raman Scattering Spectroscopic Dephasing.

ABSTRACT: Molecular vibrational spectroscopy is widely used in various sensing and imaging applications, providing intrinsic information at the molecular level. Nonlinear optical interactions using ultrashort laser pulses facilitate the selective coherent excitation of molecular vibrational modes by focusing energy into specific molecular bonds, boosting the signal level for multiple orders of magnitude. The dephasing of such coherence, which is susceptible to the local molecular environment, however, is often neglected. The unique capability of vibrational dephasing dynamics to serve as a unique probe for complex molecular interactions and the effect of local nano- and microenvironments are beyond the reach of conventional, intensity-based spectroscopy. Here, we developed a novel multiorder coheren

SUBMITTER: Zhu H 

PROVIDER: S-EPMC10308852 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature