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Explosive Vaporization of a Liquid Water Beam by Irradiation with a 10.6 μm Infrared Laser
Author(s) -
Hiraoka Kenzo,
Murata Konosuke,
Aizawa Keiichi,
Matsushita Fumiko,
Fukasawa Hiroko,
Sato Tetsuya
Publication year - 1997
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(199703)11:5<474::aid-rcm845>3.0.co;2-8
Subject(s) - vaporization , explosive material , chemistry , evaporation , irradiation , infrared , laser , beam (structure) , optics , plume , analytical chemistry (journal) , meteorology , chromatography , physics , organic chemistry , nuclear physics
A study was made of the explosive evaporation of a liquid beam using a 10.6 μm infrared laser. When a liquid water beam with a diameter larger than 50 μm was irradiated by a 50 W infrared laser in a direction at right angles to the liquid beam, plumes (i.e. jetlike streams), due to the explosive vaporization of the liquid, were observed from both the illuminated and the shadow faces of the liquid beam. When the diameter of the liquid beam was decreased (≦ 20μm), the generated plume became non‐directional and the droplets formed became much finer. A minimum time required for the explosive vaporization of the liquid water beam was found to be ∼0.7 μs for a 50 W infrared laser with a laser spot of 0.1 mm diameter. Ions formed from a laser‐irradiated aqueous solution were found to increase with increase of voltage applied to the liquid. © 1997 John Wiley & Sons, Ltd.