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The advent of attosecond spectroscopy, in particular high harmonic generation spectroscopy, has led to advances in following electronic dynamics in atoms and molecules on their natural timescale. The recent discovery of the high harmonic generation in bulk solids [1-8] has opened the door for applying HHG spectroscopy for ultrafast investigations of the electronic dynamics in the condensed phase,...
Strong field ionization of atoms and molecules is often viewed as electron tunneling through the barrier created by the laser field and core potential. In multielectron systems new tunneling channels driven by electron correlations may arise leading to complex attosecond dynamics of electron rearrangement [1]. High harmonic spectroscopy [2] provides an opportunity to record these complex dynamics...
We present [1] a way to control and shape the polarization of attosecond pulses generated by HHG by using the combination of the fundamental radiation and its second harmonic, both linearly polarized, in perpendicular geometry. By extending the multi-electron analysis done in the C02 molecule in previous works [2] to treat the two-color laser fields, we explore the rich possibilities that this control...
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