TY - JOUR
KW - non-Palaiseau
KW - paper
AU - O Guyetand
AU - M Gisselbrecht
AU - A Huetz
AU - P Agostini
AU - Richard Taïeb
AU - Valérie Véniard
AU - Alfred Maquet
AU - L Antonucci
AU - O Boyko
AU - C Valentin
AU - D Douillet
AB - Energy- and angle-resolved photoionization spectra of He irradiated by linearly polarized intense 810 run laser radiation and several of its XUV odd harmonics are investigated. The angular distribution of the odd-order peaks, produced by single-photon ionization by one harmonic, is, surprisingly, broadened by the IR field. The even-order ones, due to two-colour, two-photon ionization, show at 90 degrees lobes which depend on the relative IR-XUV phase. Application to the characterization of attosecond pulses is suggested.
BT - JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
DA - NOV 28
DO - 10.1088/0953-4075/38/22/L01
M1 - 22
N2 - Energy- and angle-resolved photoionization spectra of He irradiated by linearly polarized intense 810 run laser radiation and several of its XUV odd harmonics are investigated. The angular distribution of the odd-order peaks, produced by single-photon ionization by one harmonic, is, surprisingly, broadened by the IR field. The even-order ones, due to two-colour, two-photon ionization, show at 90 degrees lobes which depend on the relative IR-XUV phase. Application to the characterization of attosecond pulses is suggested.
PY - 2005
SP - L357
EP - L363
T2 - JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
TI - Multicolour above-threshold ionization of helium: quantum interference effects in angular distributions
VL - 38
SN - 0953-4075
ER -