title: Rhythmic oscillation and dynamic instability of micrometer-size phase separation under continuous photon flux by a focused laser.
abstract: We report the dynamical behavior of microm-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.
authors.affiliation: Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan. sadakane@chem.scphys.kyoto-u.ac.jp
authors.forename: Koichiro
authors.initials: K
authors.lastname: Sadakane
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kitahata
authors.forename: Hideki
authors.initials: H
authors.lastname: Seto
authors.forename: Kenichi
authors.initials: K
authors.lastname: Yoshikawa