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arXiv · 2111.14085

Optics-less beam control of EUV high harmonics generated from solids

Byunggi Kim·Seungman Choi·Yong Woo Kim·Seung Jai Won·Young-Jin Kim·Seung-Woo Kim
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Abstract

High harmonics generation (HHG) of coherent extreme ultraviolet (EUV) radiation enables ultrafast pump-probe spectroscopy with attosecond-scale timing resolutions. Yet beam control of generated EUV radiation remains a major challenge for handy implementation of ultrafast spectroscopy particularly for nano-micro samples. Here, we demonstrate a solid-based HHG scheme that incorporates non-collinear illumination to perform the propagation control of EUV harmonics by wavefront phase manipulation via a spatial light modulator. Further, our solid-based non-collinear HHG scheme converts EUV harmonics to Bessel beams without extra optics for beam focusing, offering a useful tool for diverse EUV applications of metrology and fabrication.

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Byunggi Kim, Seungman Choi, Yong Woo Kim, Seung Jai Won, Young-Jin Kim, Seung-Woo Kim. 2021-11-28. Optics-less beam control of EUV high harmonics generated from solids. https://doi.org/10.1021/acsphotonics.3c00645

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