Measuring the 3D Dynamics of Multiple Colloidal Particles with Digital Holographic Microscopy

Autor: Fung, Jerome
Rok vydání: 2013
Předmět:
Druh dokumentu: Thesis or Dissertation
Popis: We discuss digital holographic microscopy (DHM), a 3D imaging technique capable of measuring the positions of micron-sized colloidal particles with nanometer precision and sub-millisecond temporal resolution. We use exact electromagnetic scattering solutions to model holograms of multiple colloidal spheres. While the Lorenz-Mie solution for scattering by isolated spheres has previously been used to model digital holograms, we apply for the first time an exact multisphere superposition scattering model that is capable of modeling holograms from spheres that are sufficiently close together to exhibit optical coupling.
Physics
Databáze: Networked Digital Library of Theses & Dissertations