Phase Memory Preserving Harmonics from Abruptly Autofocusing Beams.
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DOI: 10.1103/physrevlett.119.223901
Abstract: We demonstrate both theoretically and experimentally that the harmonics from abruptly autofocusing ring-Airy beams present a surprising property: They preserve the phase distribution of the fundamental beam. Consequently, this "phase memory" imparts to the harmonics… read more here.
Keywords: harmonics abruptly; phase memory; abruptly autofocusing; memory preserving ... See more keywords