title: Optically induced melting of colloidal crystals and their recrystallization.
abstract: Colloidal crystals melt by applying focused light of optical tweezers and recrystallize after removing it. The disturbed zone by the light grows radially from the focus point and the ordering starts from the interface with the crystal. Although the larger disturbed zone is observed for the higher power optical tweezers, a master curve is extracted by normalization of the disturbed zone. The temporal changes of the normalized disturbed zone are well described with exponential functions, indicating that the melting and recrystallization process is governed by a simple relaxation mechanism.
authors.affiliation: Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan. harada@mosk.tytlabs.co.jp
authors.forename: Masashi
authors.initials: M
authors.lastname: Harada
authors.forename: Masahiko
authors.initials: M
authors.lastname: Ishii
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D003102:Colloids / Q000737:chemistry*; D003460:Crystallization; D006358:Hot Temperature; D008956:Models, Chemical; D008962:Models, Theoretical; D052898:Optical Tweezers; D011137:Polystyrenes / Q000737:chemistry; D013997:Time Factors
chemical_list: D003102:Colloids; D011137:Polystyrenes