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Maximum relative excitation of a specific vibrational mode via optimum laser-pulse duration

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dc.creator Zhou, Xiang en_US
dc.creator Lin, Zhibin en_US
dc.creator Jiang, Chenwei en_US
dc.creator Gao, Meng en_US
dc.creator Allen, Roland E. en_US
dc.date.accessioned 2012-09-19T20:05:47Z
dc.date.available 2012-09-19T20:05:47Z
dc.date.issued 2010 en_US
dc.identifier.citation Xiang Zhou, Zhibin Lin, Chenwei Jiang, Meng Gao and Roland E. Allen. Phys.Rev.B 82 075433 2010."Copyright (2010) by the American Physical Society." en_US
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevB.82.075433 en_US
dc.identifier.uri http://hdl.handle.net/1969.1/146833
dc.description Journals published by the American Physical Society can be found at http://journals.aps.org/ en_US
dc.description.abstract For molecules and materials responding to femtosecond-scale optical laser pulses, we predict maximum relative excitation of a Raman-active vibrational mode with period T when the pulse has a full-width-at-halfmaximum duration tau approximate to 0.42T. This result follows from a general analytical model, and is precisely confirmed by detailed density-functional-based dynamical simulations for C(60) and a carbon nanotube, which include anharmonicity, nonlinearity, no assumptions about the polarizability tensor, and no averaging over rapid oscillations within the pulse. The mode specificity is, of course, best at low temperature and for pulses that are electronically off-resonance, and the energy deposited in any mode is proportional to the fourth power of the electric field. en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.rights This work is archived in the Texas A&M Digital Repository with the express permission of the rights holder (commonly but not always the publisher). A copy of the permission document is on file with the Texas A&M University Libraries. en_US
dc.subject MOTION en_US
dc.subject DYNAMICS en_US
dc.subject C-60 en_US
dc.subject SPECTROSCOPY en_US
dc.subject GENERATION en_US
dc.subject CARBON en_US
dc.subject Physics en_US
dc.title Maximum relative excitation of a specific vibrational mode via optimum laser-pulse duration en_US
dc.type Article en_US
local.department Physics and Astronomy en_US

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