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Wavelength‐dependent Coulomb explosion in carbon disulphide (CS 2 ) clusters: generation of energetic multiply charged carbon and sulphur ions
Author(s) -
Sharma Pramod,
Vatsa Rajesh K.
Publication year - 2007
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/rcm.3127
Subject(s) - coulomb explosion , chemistry , polarizability , ion , atomic physics , dipole , dissociation (chemistry) , coulomb , ionization , cluster (spacecraft) , carbon fibers , wavelength , absorption (acoustics) , laser , ionization energy , electron , optics , molecule , physics , materials science , organic chemistry , quantum mechanics , composite number , computer science , programming language , composite material
A gigawatt laser‐induced Coulomb explosion has been observed in carbon disulphide (CS 2 ) clusters generating energetic, multiply charged [C] m+ ( m = 1–4) and [S] n+ ( n = 1–6) atomic ions of carbon and sulphur. The Coulomb explosion shows wavelength dependence. Comparison of these results with our earlier work shows that the polarizability and dipole moment might help in energy absorption from the laser field but they are not mandatory conditions for this low‐intensity Coulomb explosion. The results show that in a field of 10 9 W/cm 2 , absorption of 266 and 355 nm laser radiation by CS 2 clusters leads to multiphoton dissociation/ionization whereas at 532 nm the whole cluster explodes generating multiply charged atomic ions. Copyright © 2007 John Wiley & Sons, Ltd.