Title :
Efficient attosecond pulse generation by gating HHG with sub-cycle ionization dynamics
Author :
Calegari, F. ; Ferrari, F. ; Lucchini, M. ; Vozzi, C. ; Stagira, S. ; Sansone, G. ; Nisoli, M.
Author_Institution :
Dept. of Phys., Politec. di Milano, Milan, Italy
Abstract :
The XUV radiation has been produced by focusing 5-fs high-intensity (/ = 2.3xl015 W/cm2) driving pulses with stable carrier envelope phase (CEP) in a cell filled with xenon at static pressure (2.5-3 torr). Figure 1(a) shows the XUV spectra acquired as a function of the CEP of the driving field: the spectral shape periodically changes for a CEP variation of π. The XUV spectra display an evolution from a continuous behavior to a modulated one, thus indicating that, depending on the CEP value, it is possible to generate an isolated pulse or a couple of pulses.
Keywords :
ionisation; optical pulse generation; XUV radiation; attosecond pulse generation; carrier envelope phase; driving pulses; gating HHG; spectral shape; sub cycle ionization dynamics;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943033
