Dual Raman-Brillouin Microscope for Chemical and Mechanical Characterization and Imaging. uri icon

abstract

  • We present a unique confocal microscope capable of measuring the Raman and Brillouin spectra simultaneously from a single spatial location. Raman and Brillouin scattering offer complementary information about a material's chemical and mechanical structure, respectively, and concurrent monitoring of both of these spectra would set a new standard for material characterization. We achieve this by applying recent innovations in Brillouin spectroscopy that reduce the necessary acquisition times to durations comparable to conventional Raman spectroscopy while attaining a high level of spectral accuracy. To demonstrate the potential of the system, we map the Raman and Brillouin spectra of a molded poly(ethylene glycol) diacrylate (PEGDA) hydrogel sample in cyclohexane to create two-dimensional images with high contrast at microscale resolutions. This powerful tool has the potential for very diverse analytical applications in basic science, industry, and medicine.

published proceedings

  • Anal Chem

altmetric score

  • 3

author list (cited authors)

  • Traverso, A. J., Thompson, J. V., Steelman, Z. A., Meng, Z., Scully, M. O., & Yakovlev, V. V.

citation count

  • 102

complete list of authors

  • Traverso, Andrew J||Thompson, Jonathan V||Steelman, Zachary A||Meng, Zhaokai||Scully, Marlan O||Yakovlev, Vladislav V

publication date

  • August 2015