@article{THESIS,
      recid = {1441},
      author = {Figliozzi, Patrick Edward Poppe},
      title = {Properties and Dynamics of Driven Optical Matter},
      publisher = {University of Chicago},
      school = {Ph.D.},
      address = {2017-08},
      number = {THESIS},
      pages = {184},
      abstract = {To date investigations of the dynamics of driven colloidal  systems have focused on hydrodynamic interactions and often  employ optical (laser) tweezers for manipulation. However,  the optical fields that provide confinement and drive also  result in electrodynamic interactions that are generally  neglected. We address this issue with a detailed study of  150-nm Ag nanoparticles electrodynamically interacting in  an optical ring vortex trap using 150-nm diameter Ag  nanoparticles. We term the resultant electrodynamically  interacting nanoparticles a driven optical matter system.  First, the instrument used to create driven optical matter  is described with special attention to optimizing the  components that create the optical ring vortex. Next, we  explore a systematic study of the electrodynamical  interactions of driven optical matter using experimental  and simulation methods We determined the nature of optical  ring vortex gives rise to increased fluctuations of  interparticle separation that should not be neglected in  any optically driven colloidal system. Then, we use driven  optical matter to test various kinetic models in a  non-equilibrium barrier crossing experiment. We show that  one can easily misinterpret dynamics from barrier crossing  models through experiment and simulation where no barrier  is present. Afterwards, barrier crossing in driven optical  matter is explored in a system where the barrier is not  fixed at one location but moves with the particles. This  “particle passing” process also involves a 2-dimensional  reaction coordinate that modulates as a pair of particles  is driven around the optical ring vortex. Finally,  localization errors that result from particle tracking are  explored and a new method for correcting those errors, the  SPIFF algorithm, is presented. Supplemental material for  this dissertation includes software to control a spatial  light modulator and analysis of driven optical matter  experiments.},
      url = {http://knowledge.uchicago.edu/record/1441},
      doi = {https://doi.org/10.6082/uchicago.1441},
}