Abstract
Strong field effects occurring during the interaction of femtosecond laser pulses with “bowtie” composite nanoantennas are numerically simulated. The effect of the nanoantenna shape and laser pulse parameters on the “plateau” formation in the photoelectron energy spectra is studied. It is shown that the upper boundary of the “plateau” can increase appreciably for the same laser pulse parameters when nanoantenna element sizes are different. Physical explanation of the phenomenon is given.
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