TY - JOUR
T1 - Ultrafast ionization study of N-2 in intense linearly and circularly polarized laser fields
AU - McKenna, J.
AU - Suresh, M.
AU - Srigengan, Balasingam
AU - Williams, Ian
AU - Bryan, W.A.
AU - English, E.M.L.
AU - Stebbings, S.L.
AU - Newell, W.R.
AU - Turcu, I.C.E.
AU - Smith, J.M.
AU - Divall, E.J.
AU - Hooker, C.J.
AU - Langley, A.J.
AU - Collier, J.L.
PY - 2006/4
Y1 - 2006/4
N2 - A detailed investigation has been carried out of N-2 molecules in intense 55 and 220 fs, linear and circular polarized, 790 nm laser pulses. Using an intensity selective scanning technique, ionization, dissociation, and dissociative ionization channels have been studied. Remarkably similar enhancements of signal with linear polarization observed for double ionization and dissociation channels demonstrate the dominance of dynamic alignment over rescattering effects. Fragmentation energies from dissociative ionization are reasonably well reproduced by classical trajectory calculations, the higher charged fragments displaying evidence of post dissociative ionization.
AB - A detailed investigation has been carried out of N-2 molecules in intense 55 and 220 fs, linear and circular polarized, 790 nm laser pulses. Using an intensity selective scanning technique, ionization, dissociation, and dissociative ionization channels have been studied. Remarkably similar enhancements of signal with linear polarization observed for double ionization and dissociation channels demonstrate the dominance of dynamic alignment over rescattering effects. Fragmentation energies from dissociative ionization are reasonably well reproduced by classical trajectory calculations, the higher charged fragments displaying evidence of post dissociative ionization.
UR - http://www.scopus.com/inward/record.url?scp=33645675948&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.73.043401
DO - 10.1103/PhysRevA.73.043401
M3 - Article
VL - 73
SP - 043401-1-043401-9
JO - Physical Review A (Atomic, Molecular, and Optical Physics)
JF - Physical Review A (Atomic, Molecular, and Optical Physics)
SN - 1050-2947
IS - 4
M1 - 043401
ER -