Control and imaging of interfering wave packets in dissociating I{sub 2} molecules

Journal Article · Wed Sep 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.033404· OSTI ID:20646080

Petersen, Christian; Peronne, Emmanuel; Thoegersen, Jan; Stapelfeldt, Henrik; Machholm, Mette ^[1]

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1. Department of Chemistry, University of Aarhus, DK-8000 Aarhus C (Denmark)

Dissociation of iodine molecules by two phase-locked 110 femtosecond laser pulses creates a wave packet in the repulsive part of the B state. The time-dependent density functions for the internuclear position, {psi}(R,t){sup 2}, and for the internuclear velocity, {psi}(v{sub R},t){sup 2}, of the wave packet are measured by ionization with a delayed, intense 20 fs nonresonant laser pulse. The pronounced interference pattern, observed in both {psi}(R){sup 2} and {psi}(v{sub R}){sup 2}, is controlled by the time separation of the two pump pulses. The experimentally determined internuclear position and velocity distributions are in very good agreement with calculated results for {psi}(R){sup 2} and {psi}(v{sub R}){sup 2} obtained by numerical wave packet propagation.

• OSTI ID: 20646080
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CONTROL
DENSITY
DISSOCIATION
DISTRIBUTION
INTERFERENCE
IODINE
LASER RADIATION
MOLECULES
OPTICAL PUMPING
PHOTOIONIZATION
PHOTON-MOLECULE COLLISIONS
PULSES
TIME DEPENDENCE
VELOCITY
WAVE PACKETS