Atomic and molecular stabilization in two-frequency laser fields

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We examine the suppression of 1+1 photodissociation or photoionization by laser fields. We find that atoms and molecules become more stable against photoionization or photodissociation when the intensity of the nonresonant laser field is increased above a limiting value for a two level plus continuum model system. We treat the ionization or dissociation dynamics analytically and discuss the conditions for optimum yields in a two-frequency square pulse laser field. We observe similar suppression against photodissociation for realistic sine-squared laser pulses. We demonstrate such a type of molecular suppression for 1+1 photodissociation of H-2. (C) 2003 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2003-07
Language
English
Article Type
Article
Keywords

MULTIPHOTON IONIZATION; DIATOMIC-MOLECULES; RYDBERG STATES; PHASE-CONTROL; INTENSE; PREDISSOCIATION; SUPERINTENSE; DISSOCIATION; SUPPRESSION; 2-PHOTON

Citation

JOURNAL OF CHEMICAL PHYSICS, v.119, no.4, pp.2083 - 2087

ISSN
0021-9606
URI
http://hdl.handle.net/10203/83398
Appears in Collection
CH-Journal Papers(저널논문)
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