Rhythmic oscillation and dynamic instability of micrometer-size phase separation under continuous photon flux by a focused laser

Koichiro Sadakane, Hiroyuki Kitahata, Hideki Seto, and Kenichi Yoshikawa
Phys. Rev. E 78, 046214 – Published 24 October 2008
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Abstract

We report the dynamical behavior of μm-sized phase separation for a homogeneous mixture of D2O and 3-methylpyridine (3MP) induced under continuous photon-flux by a focused YAG laser. At a water-rich composition, stable rhythmic oscillation of the emergence-growth escape of a 3MP-rich droplet is generated. In contrast, at a near-critical composition, an emergent droplet exhibits significant nonequilibrium fluctuation. Such dynamic phenomena are interpreted in terms of the effect of a local dielectric field and a dissipative system generated by a focused laser on the binary mixture.

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  • Received 7 May 2008

DOI:https://doi.org/10.1103/PhysRevE.78.046214

©2008 American Physical Society

Authors & Affiliations

Koichiro Sadakane*, Hiroyuki Kitahata, and Hideki Seto

  • Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan

Kenichi Yoshikawa§

  • Department of Physics, Graduate School of Science, Kyoto University and Spatio-Temporal Order Project, ICORP, JST, Kyoto 606-8502, Japan

  • *sadakane@chem.scphys.kyoto-u.ac.jp
  • Present address: Department of Physics, Graduate School ofScience, Chiba University, Chiba 263-8522, Japan.
  • Present address: Institute of Materials Structure Science, High Energy Accelerator Research Organization, Ibaraki 305-0801,Japan.
  • §yoshikaw@scphys.kyoto-u.ac.jp

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Issue

Vol. 78, Iss. 4 — October 2008

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