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8 July 2021 Single-shot wavefront characterization of high topological charge extreme-ultraviolet vortex
A. K. Pandey, O. Guilbaud, F. Sanson, I. Papagiannouli, A. Kabacinski, F. Tissandier, F. Harms, G. Beaugrand, G. Dovillaire, E. Baynard, J. Demailly, B. Lucas, O. Neveu, M. Pittman, D. Ros, S. Sebban, Ph. Balcou, S. Kazamias
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Proceedings Volume 11886, International Conference on X-Ray Lasers 2020; 118860L (2021) https://doi.org/10.1117/12.2592326
Event: XVII International Conference on X-Ray Lasers, 2020, Online Only
Abstract
We present an experimental intensity and wavefront characterization of the infrared vortex driver as well as the extreme ultraviolet vortex obtained through high harmonic generation in an extended generation medium. In a loose focusing geometry, an intense vortex beam obtained through phase-matched absorption-limited high harmonic generation in a 15 mm long Argon filled gas-cell permits single-shot characterization of the vortex structure. Moreover, our study validates the multiplicative law of momentum conservation even for such an extended generation medium.
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A. K. Pandey, O. Guilbaud, F. Sanson, I. Papagiannouli, A. Kabacinski, F. Tissandier, F. Harms, G. Beaugrand, G. Dovillaire, E. Baynard, J. Demailly, B. Lucas, O. Neveu, M. Pittman, D. Ros, S. Sebban, Ph. Balcou, and S. Kazamias "Single-shot wavefront characterization of high topological charge extreme-ultraviolet vortex", Proc. SPIE 11886, International Conference on X-Ray Lasers 2020, 118860L (8 July 2021); https://doi.org/10.1117/12.2592326
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