Millimeter-scale dense liquid droplet formation and crystallization in glycine solution induced by photon pressure

Ken Ichi Yuyama, Sugiyama Teruki*, Hiroshi Masuhara

*Corresponding author for this work

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A millimeter-scale dense liquid droplet of glycine is prepared by focusing a CW near-infrared laser beam at the glass/solution interface of a thin film of its supersaturated heavy water solution. The formation process is investigated by direct observation with CCD and by measuring temporal change of the surface height with a displacement meter. The droplet becomes much larger than a focal spot size, a few mm width and ∼150 μm height, and observable with the naked eye. Interestingly, the droplet remains for a few tens of seconds even after switching off the laser beam. Whereas the droplet is kept during laser irradiation, the crystallization is immediately attained by shifting the laser beam to the air/droplet surface. It is considered that the droplet is possibly the early stage of the multistep crystallization process and plays an important role in photon pressure-induced crystallization of glycine.

Original languageEnglish
Pages (from-to)1321-1325
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume1
Issue number9
DOIs
StatePublished - 6 May 2010

Keywords

  • Nanoparticles and Nanostructures

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