Quantum-Phase Resolved Mapping of Ground-State Vibrational D{sub 2} Wave Packets via Selective Depletion in Intense Laser Pulses

Journal Article · Fri Sep 08 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.103004· OSTI ID:20860784

Ergler, Th; Rudenko, A; Schroeter, C D; Moshammer, R; Ullrich, J ^[1]; Feuerstein, B ^[1]; Zrost, K ^[1]

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1. Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)

Applying 7 fs pump-probe pulses (780 nm, 4x10{sup 14} W/cm{sup 2}) we observe electronic ground-state vibrational wave packets in neutral D{sub 2} with a period of T=11.101(70) fs by following the internuclear separation (R-)dependent ionization with a sensitivity of {delta}<R>{<=}0.02 A . The absolute phase of the wave packet's motion provides evidence for R-dependent depletion of the ground state by nonlinear ionization, to be the dominant preparation mechanism. A phase shift of about {pi} found between pure ionization (D{sub 2}{sup +}) and dissociation (D{sup +}+D) channels opens a pathway of quantum control.

• OSTI ID: 20860784
• Journal Information: Physical Review Letters, Vol. 97, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.97.103004; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEUTERIUM IONS
GROUND STATES
IONIZATION
LASERS
MAPPING
NONLINEAR PROBLEMS
PHASE SHIFT
PULSES
WAVE PACKETS