Observation of subterahertz monochromatic transition radiation from a grating

A. P. Potylitsyn, G. A. Naumenko, L. G. Sukhikh, A. Aryshev, M. Shevelev, N. Terunuma, J. Urakawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Transition radiation appearing when a charged particle crosses the interface between two media with different dielectric constants, e.g., a metal–vacuum interface, has been well studied in a wide spectral range. However, primarily, radiation from smooth interfaces has been studied. Transition radiation from conducting gratings (grating transition radiation) is experimentally studied and theoretically analyzed in this work. In this case, it is possible to obtain monochromatic radiation with a tunable frequency depending on the rotation angle of the grating with respect to the electron momentum. Coherent grating transition radiation can be efficiently used as a source of terahertz radiation based on the use of a compact electron accelerator with an energy below 10 MeV and a bunch duration of ≤1 ps.

Original languageEnglish
Pages (from-to)806-810
Number of pages5
JournalJETP Letters
Volume104
Issue number11
DOIs
Publication statusPublished - 1 Dec 2016

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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