Abstract
Nowdays attosecond technology has become an important branch of ultrafast science [1], in particular because of the possibility to take snapshots of the electronic motion in atoms and molecules. So far, the reported applications of isolated attosecond pulses have been limited by the low photon flux of the available sources. We have recently demonstrated a technique for the generation of isolated attosecond pulses with energy on target up to 2.1 nJ [2]. The key elements are the use of few-optical-cycle driving pulses with controlled electric field and peak intensity beyond the saturation intensity of the gas used for high-order hannonic generation (HHG), and efficient spatial filtering in the XUV beamline.
© 2011 Optical Society of America
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