Laser vaporization of cirrus-like ice particles with secondary ice multiplication | Zendy

Mary Matthews | Zendy; F. Pomel | Zendy; C. Wender | Zendy; Alexei Kiselev | Zendy; Denis Duft | Zendy; Jérôme Kasparian | Zendy; JeanPierre Wolf | Zendy; Thomas Leisner | Zendy

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Laser vaporization of cirrus-like ice particles with secondary ice multiplication

Author(s) -

Mary Matthews,

F. Pomel,

C. Wender,

Alexei Kiselev,

Denis Duft,

Jérôme Kasparian,

JeanPierre Wolf,

Thomas Leisner

Publication year - 2016

Publication title -

science advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.928

H-Index - 146

ISSN - 2375-2548

DOI - 10.1126/sciadv.1501912

Subject(s) - cirrus , multiplication (music) , ice crystals , vaporization , ice nucleus , laser , environmental science , atmospheric sciences , meteorology , geology , optics , physics , nucleation , thermodynamics , acoustics

We investigate the interaction of ultrashort laser filaments with individual 90 µm ice particles, representative of cirrus particles. The ice particles fragment under laser illumination. By monitoring the evolution of the corresponding ice/vapour system at up to 140,000 frames per second over 30 ms, we conclude that a shockwave vaporization supersaturates the neighbouring region relative to ice, allowing the nucleation and growth of new ice particles, supported by laser-induced plasma photochemistry. This process constitutes the first direct observation of filament-induced secondary ice multiplication (FISIM), a process that strongly modifies the particle size distribution, hence the albedo, of typical cirrus clouds

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