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Picosecond Melting of Ice by an Infrared Laser Pulse: A Simulation Study
Author(s) -
Caleman Carl,
van der Spoel David
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200703987
Subject(s) - picosecond , crystal (programming language) , infrared , nucleation , pulse (music) , laser , materials science , energy (signal processing) , chemical physics , optics , chemistry , physics , thermodynamics , computer science , quantum mechanics , detector , programming language
Cold as ice : Molecular dynamics simulation provides snapshots of a melting ice crystal (see picture). The laser pulse heats up the system, and the energy is absorbed in the OH bonds. After a few picoseconds, the energy is transferred to rotational and translational energy, causing the crystal to melt. The melting starts as a nucleation process, and even long after the first melting is initialized, pockets of crystalline structures can be found.