Demonstration of variable angle super-heterodyne dynamic light scattering for measuring colloidal dynamics

Open Access
Authors
  • A. Groß
  • A. Agarwal
  • S. Heidt
  • J. Wenzl
  • N. Zaghi
  • E. Vorobev
  • T. Palberg
Publication date 02-2021
Journal Colloid and polymer science
Volume | Issue number 299
Pages (from-to) 259–268
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
Abstract We demonstrate a prototype light scattering instrument combining a frequency domain approach to the intermediate scattering function from Super-Heterodyning Doppler Velocimetry with the versatility of a standard homodyne dynamic light scattering goniometer setup for investigations over a large range of scattering vectors. Comparing to reference experiments in correlation-time space, we show that the novel approach can determine diffusion constants and hence hydrodynamic radii with high precision and accuracy. Possible future applications are discussed shortly.
Document type Article
Note In special issue: Kolloidtagung 2019.
Language English
Published at https://doi.org/10.1007/s00396-020-04669-6
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