Four-Wave-Mixing Approach to In Situ Detection of Nanoparticles Academic Article uri icon


  • © 2018 American Physical Society. We report on the development and experimental validation of a laser-based technique which uses coherent Rayleigh-Brillouin scattering (CRBS) to detect nanoparticles with characteristic sizes ranging from the atomic scale to tens of nanometers. This technique is aimed (nonexclusively) at the detection of nanoparticles produced by volumetric nanoparticle synthesis methods. Using CRBS, carbon nanoparticles of dimensions less than 10 nm and concentrations of 1010 cm-3 are detected in situ in a carbon arc discharge with graphite electrodes. This four-wave-mixing approach should enable advances in the understanding of nanoparticle growth that could potentially lead to improved modeling of the growth mechanisms, and thus to improve synthesis selectivity of nanoparticles and yield.

altmetric score

  • 58.75

author list (cited authors)

  • Gerakis, A., Yeh, Y., Shneider, M. N., Mitrani, J. M., Stratton, B. C., & Raitses, Y.

citation count

  • 10

publication date

  • January 2018