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Experimental observation of Cherenkov superradiance from an intense electron bunch

Ginzburg, N S and Sergeev, A S and Novozhilova, Y V and Zotova, I V and Rosenthal, R M and Phelps, A D R and Cross, A W and Aitken, P and Shpak, V G and Yalandin, M I and Shunailov, S A and Ulmaskulov, M R (2000) Experimental observation of Cherenkov superradiance from an intense electron bunch. Optics Communications, 175 (1-3). pp. 139-146. ISSN 0030-4018

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Abstract

Experimental results are presented of the observation of stimulated Cherenkov radiation when intense subnanosecond electron bunches were moving through a dielectric-loaded waveguide. The ultrashort duration microwave pulses (up to 400 ps which is equivalent to similar to 10 periods of the radiation) in combination with specific dependencies of peak microwave power on interaction length demonstrate that this emission can be interpreted as coherent superradiant (SR) emission. The peak power associated with the SR emission was similar to 1-2 MW. The spectrum of radiation belongs to the frequency range 38-48 GHz. The experimental results are compared with theoretical analyses.

Item type: Article
ID code: 35599
Keywords: cyclotron superradiance, lasers, oscillators, millimeter, emission, Plasma physics. Ionized gases, Optics. Light
Subjects: Science > Physics > Plasma physics. Ionized gases
Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 07 Nov 2011 13:36
    Last modified: 17 Jul 2013 11:20
    URI: http://strathprints.strath.ac.uk/id/eprint/35599

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