Experimental observation of superradiance in millimeter-wave band

Ginzburg, N S and Sergeev, A S and Zotova, I V and Novozhilova, Y V and Peskov, N Y and Konoplev, I V and Phelps, A D R and Cross, A W and Cooke, S J and Aitken, P and Shpak, V G and Yalandin, M I and Shunailov, C A and Ulmaskulov, M P (1997) Experimental observation of superradiance in millimeter-wave band. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 393 (1-3). pp. 352-355. ISSN 0168-9002 (https://doi.org/10.1016/S0168-9002(97)00509-3)

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Abstract

The first experimental results of the observation of superradiance from a single subnanosecond electron bunch are presented. Superradiance was associated with different varieties of stimulated emission (bremstruhlung, cyclotron, Cherenkov, etc). Unique megawatt power level microwave pulses of short duration (0.3-0.5 ns) have been obtained.