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SUMMARY:Generation of Smith-Purcell radiation from an array of sub-wavelen
 gth particles
DTSTART;VALUE=DATE-TIME:20200713T132500Z
DTEND;VALUE=DATE-TIME:20200713T132600Z
DTSTAMP;VALUE=DATE-TIME:20261008T195444Z
UID:indico-contribution-1896@indico.inp.nsk.su
DESCRIPTION:Speakers: D.Yu. Sergeeva (National Research Tomsk Polytechnic 
 University\, Tomsk\, Russia)\nSmith-Purcell radiation is emitted by an ele
 ctron moving near a periodically inhomogeneous target. The main features o
 f Smith-Purcell radiation is monochromaticity and relation between the wav
 elength of radiation and the observation angle. As during generation there
  is no direct scattering the electrons on the atoms of material\, this typ
 e of radiation can serve as a tool for non-invasive beam diagnostics. Here
 \, we report on the recent progress in theoretical investigation of Smith-
 Purcell radiation from two-periodical arrays consisting of small particles
 . Such targets are referred as metasurfaces or photonic crystals as well. 
 Second period in direction perpendicular to the electron trajectory opens 
 new possibilities for the diagnostics of relativistic electron beam\, incl
 uding simultaneous measuring the two emittances for the electron beams wit
 h asymmetric cross-section.\nThis work was supported by the Russian Scienc
 e Foundation\, grant № 19-72-00178.\n\nhttps://indico.inp.nsk.su/event/2
 4/contributions/1896/
LOCATION:
URL:https://indico.inp.nsk.su/event/24/contributions/1896/
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