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Updated: Jul 19, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Optically induced melting of colloidal crystals and their recrystallization
Masashi Harada1, Masahiko Ishii, Hiroshi Nakamura
1Toyota Central R&D Laboratories, Inc., Nagakute, Aichi 480-1192, Japan. harada@mosk.tytlabs.co.jp
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.
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