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arXiv · 1809.08778

The three-dimensional carrier-envelope-phase map of focused few-cycle pulsed Gaussian beams

M. A. Porras·Zoltán L. Horváth·Balázs Major
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Abstract

We derive an analytical expression that describes the complete three-dimensional carrier-envelope phase (CEP) distribution of in the focal volume of ultrashort pulsed Gaussian beams focused by spherical mirrors or lenses. The focal CEP map depends on the so-called factor $g$ specifying the frequency-dependence of the beam width of the source few-cycle pulse, on its chirp and on the small chromatic aberration introduced by a lens without appreciably distorting or broadening the few-cycle pulse. We show how to tailor the CEP map of mirror-focused and lens-focused few-cycle pulses in order to produce negligible transversal and axial CEP variations in specific regions of the focal volume for phase-sensitive interactions of light with matter taking place in a volume or on a surface. We propose a quasi-achromatic doublet lens that can implement in practice these tailored CEP distributions.

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M. A. Porras, Zoltán L. Horváth, Balázs Major. 2018-09-24. The three-dimensional carrier-envelope-phase map of focused few-cycle pulsed Gaussian beams. https://doi.org/10.1103/physreva.98.063819

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