Coherent control of multiphoton ionization of lithium atoms by a bichromatic laser field
arxiv(2024)
摘要
We demonstrate a left-right asymmetry control of the photoelectron angular
distribution in multiphoton ionization of Li atoms by a bichromatic laser
field. By delaying the fundamental (780 nm) and its second harmonic relative to
each other in steps of 130 attoseconds, we can vary the relative phase
between the two laser fields with sub-wavelength accuracy and thereby steer the
ejected electrons. Good agreement is found between the measurements and
calculations at the appropriate intensities of the two harmonics.
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