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

2021/05/17 by Konakhovych, Dmytro, Sniezek, Damian, Warmusz, Oskar +4 · 1 citation
#Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2105.07682

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.

Cited by

• Monochromatic Cherenkov diffraction radiation from continuous coupling of an electron beam to a thin dielectric slab waveguide

Related

• Efficiency of gratings for silica fiber-coupled internal Smith-Purcell radiation and Cherenkov diffraction radiation -- a quantitative numerical study
• Smith-Purcell radiation from a charge moving above a finite-length grating with rectangular profiles
• Smith-Purcell Radiation from Compound Blazed Gratings
• Smith-Purcell radiation driven by plasma accelerated beam
• Experimental investigation of coherent Smith-Purcell radiation from a "flat" grating