Laser-driven accelerated growth of dendritic patterns
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...
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| Veröffentlicht in: | arXiv.org 2011-12 |
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| creator | Basu, H Kolwankar, K M Dharmadhikari, A K Dharmadhikari, J A Bambardekar, K Sharma, S Mathur, D |
| description | 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. |
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| language | eng |
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| subjects | Anisotropy Carbon nanotubes Dendritic structure Diffusion rate Liquids Nanotubes Temperature distribution |
| title | Laser-driven accelerated growth of dendritic patterns |
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