Title
Superdiffusion In Optically Controlled Active Media
Abstract
Active media are complex systems driven by both thermal fluctuations and additional energy sources and are encountered in a variety of phenomena including mobile bacteria, protein diffusion or turbulent flows. However, studying the non-equilibrium dynamics of active media is often difficult because of their size and complexity. Here, we demonstrate that an active medium can be realized and controlled optically through dynamic coupling between multiply scattered light and colloidal particles. As a result of a strong light-matter interaction, the particles undergo diffusion upon a spatiotemporal random potential that leads to an apparent superdiffusion over timescales controlled by, among other things, both the input power and particle size. This model could serve as a convenient tool for exploring the intricacies of non-equilibrium thermodynamics of soft matter while also offering new possibilities for the coherent control of strongly coupled, complex systems. © 2012 Macmillan Publishers Limited. All rights reserved.
Publication Date
12-1-2012
Publication Title
Nature Photonics
Volume
6
Issue
12
Number of Pages
834-837
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1038/nphoton.2012.278
Copyright Status
Unknown
Socpus ID
84870704317 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84870704317
STARS Citation
Douglass, Kyle M.; Sukhov, Sergey; and Dogariu, Aristide, "Superdiffusion In Optically Controlled Active Media" (2012). Scopus Export 2010-2014. 4070.
https://stars.library.ucf.edu/scopus2010/4070