Laser-driven accelerated growth of dendritic patterns
Abstract
We report a scheme for very significantly accelerating growth of dendritic patterns in diverse liquids, making use of only a few hundred microwatts of laser power in the presence of an efficient absorber like carbon nanotubes (CNTs). The CNTs act as a heat source that drives dendritic growth; their anisotropy ensures a rich diversity of branched patterns. We rationalize the unprecedented speed of dendritic growth using a diffusion equation for the temperature field with an additional source term. Close to the heat source, the well-established microscopic solvability theory is seen to break down. Our method opens new vistas for experimental and theoretical studies of pattern formation in liquids.
Cite
@article{arxiv.1112.0090,
title = {Laser-driven accelerated growth of dendritic patterns},
author = {H. Basu and K. M. Kolwankar and A. K. Dharmadhikari and J. A. Dharmadhikari and K. Bambardekar and S. Sharma and D. Mathur},
journal= {arXiv preprint arXiv:1112.0090},
year = {2011}
}
Comments
This paper is temporarily withdrawn by the authors as it has been submitted for publication to a journal that does not permit pre-publication posting of any sort