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Dynamic wavefront rotation in the attosecond lighthouse
Attosecond pulses propagating in different directions, generated in a rotating wavefront of a driving laser field, can provide a source of multiple isolated attosecond pulses. Clear spatial separation of the attosecond pulses is attained if the divergence of the individual attosecond pulse is smaller than their angular separation, which is limited by the bandwidth of the driving laser pulse. Here we demonstrate both experimentally and numerically that an additional wavefront rotation is imposeddoi:10.1364/optica.4.000048 fatcat:bnfdt4a725a4lde7t4izgfwxxi