Chemistry Letters, Vol.50, No.1, 68-71, 2021
Development of a Vibrating Pendant-drop Raman Spectrometer and Polarization of Cavity Enhanced Raman Scattered Light
We developed a pendant-drop Raman spectrometer and observed cavity enhanced Raman scattered light. Further enhancement of the Raman scattered light was demonstrated by controlling the droplet shape, which was performed by applying vibrations to the pendant drop. We found that (1) stimulated Raman scattering proceeds and enhances its intensity at the surface of the pendant droplet, (2) a horizontally elongated droplet gives further enhancement by light confinement, and (3) only s-polarized light resonates in the pendant drop. This study facilitates spectroscopic studies on the liquid surface.