Electron Localization in Molecular Fragmentation of H{sub 2} by Carrier-Envelope Phase Stabilized Laser Pulses

Journal Article · Fri Nov 20 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.213003· OSTI ID:21370852

Kremer, Manuel; Fischer, Bettina; Feuerstein, Bernold; Sharma, Vandana; Hofrichter, Christian; Schroeter, Claus Dieter; Moshammer, Robert; Ullrich, Joachim ^[1]; Jesus, Vitor L. B. de ^[2]; Rudenko, Artem ^[3]; Thumm, Uwe ^[4]

---

1. Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)
2. Instituto Federal de Educacao, Ciencia e Tecnologia do Rio de Janeiro (IFRJ), Nilopolis, RJ (Brazil)
3. Max-Planck Advanced Study Group at CFEL, D-22607 Hamburg (Germany)
4. James R. Macdonald Laboratory, Kansas State University, Manhattan, Kansas 66506-2606 (United States)

Fully differential data for H{sub 2} dissociation in ultrashort (6 fs, 760 nm), linearly polarized, intense (0.44 PW/cm{sup 2}) laser pulses with a stabilized carrier-envelope phase (CEP) were recorded with a reaction microscope. Depending on the CEP, the molecular orientation, and the kinetic energy release (KER), we find asymmetric proton emission at low KERs (0-3 eV), basically predicted by Roudnev and Esry, and much stronger than reported by Kling et al. Wave packet propagation calculations reproduce the salient features and discard, together with the observed KER-independent electron asymmetry, the first ionization step to be the reason for the asymmetric proton emission.

• OSTI ID: 21370852
• Journal Information: Physical Review Letters, Vol. 103, Issue 21; Other Information: DOI: 10.1103/PhysRevLett.103.213003; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMMETRY
ELECTRONS
EMISSION
HYDROGEN
IONIZATION
KINETIC ENERGY
LASERS
PROTONS
PULSES
WAVE PACKETS
BARYONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
FERMIONS
HADRONS
LEPTONS
NONMETALS
NUCLEONS