Claudio Cirelli1, Petrissa Eckle1, Mathias Smolarski2, Adrian Pfeiffer - PDF document

Claudio Cirelli1, Petrissa Eckle1, Mathias Smolarski2, Adrian Pfeiffer1, Philip Schlup1, Jens Biegert1, AndrŽ Staudte2, Markus Schšffler2, Harm G. Muller3, Rei 1 Department Physi -Zurich, Switzerland 2Institut fŸr Kernphysik, Johann Wolfgang Goethe UniversitŠt, Max-Von-Laue-Str. 1, 60438 Frankfurt am Main, Germany 3FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands cirelli@phys.ethz.ch Abstract: We have demonstrated a new technique to achieve attosecond resolution without using attosecond pulses based on Ôangular-streakingÕ with carrier envelope offset phase (CEP) controlled circularly polarized light. We resolved sub-cycle ionization dynamics with an accuracy of 23 as rms and temporal resolution of 150 as when compar Fig. 1: Angular streaking measurements and semic-classical simulation (a) toroidal He ion momentum distributions projected onto the polarization plane for four different CEP values !CEO = 0, !/2, ! and 3/2! respectively. (b) radially integrated distributions as a function of CEP for the entire CEP scan (left) compared to simulations (right). (c) The data has been normalized to the CEP-averaged distribution (which effectively corresponds to the non-CEP-stabilized IR pulse), measurement (left), simulations (right). (d) analogous to (a) but for the normalized data. Using attosecond angular streaking we fully charact