Tailoring the waveforms to extend the high-order harmonic generation cut-off

TL;DR

This paper demonstrates that by tailoring the waveform of the driving field composed of multiple harmonics, the high-order harmonic generation cut-off can be increased by about 20%, indicating a potential upper limit for such enhancements.

Contribution

The paper introduces a method of waveform tailoring using multiple harmonics to extend the high-order harmonic generation cut-off.

Findings

Achieved approximately 20% increase in the cut-off value.

Identified a possible upper limit for cut-off extension with the considered waveforms.

Demonstrated the effectiveness of waveform shaping in harmonic generation enhancement.

Abstract

Increase of the cut-off value in the high order harmonics generation process is demonstrated for a special case of the driving field composed of several harmonics of a given frequency. It is shown that a moderate, of the order of 20%, increase in the cut-off value can be achieved. This result possibly constitutes an upper limit for the increase in the cut-off value, attainable for a class of the waveforms considered in the paper.