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arXiv · 2105.07682

Internal Smith-Purcell radiation and its interplay with Cherenkov diffraction radiation in silicon -- a combined time and frequency domain numerical study

Dmytro Konakhovych·Damian Sniezek·Oskar Warmusz·Dylan S. Black·Zhexin Zhao·R. Joel England·Andrzej Szczepkowicz
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Abstract

We consider radiation generated by an electron travelling parallel to a planar rectangular silicon grating: Smith-Purcell radiation to the vacuum side, internal Smith-Purcell radiation into the dielectric, and Cherenkov radiation into the dielectric. Internal Smith-Purcell radiation dominates over the other two radiation mechanisms in the range where conventional Smith-Purcell radiation is forbidden. This observation may lead to improved design of contactless particle beam monitors.

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Dmytro Konakhovych, Damian Sniezek, Oskar Warmusz, Dylan S. Black, Zhexin Zhao, R. Joel England, Andrzej Szczepkowicz. 2021-05-17. Internal Smith-Purcell radiation and its interplay with Cherenkov diffraction radiation in silicon -- a combined time and frequency domain numerical study. https://arxiv.org/abs/2105.07682

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