Abstract
This paper proposes a non-intrusive measurement imaging technique of solution composition at liquid-solid interfaces using spontaneous Raman scattering excited by evanescent wave. The evanescent wave was generated at a glass-solution interface by total internal reflection using an optical system employing two prisms. Total internal reflection Raman spectra of a mixed solution of H_2O and D_2O could be obtained that confirmed the relation between the solution composition and the integrated Raman intensities within the Raman bands of O-H and O-D stretching modes. Future experiments will be performed for non-intrusive measurement of the composition of mixed solutions at liquid-solid interfaces using Raman scattering images.
