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Experimental observation of superradiance in the stimulated scattering of an intense microwave pump wave by a counterpropagating subnanosecond high-current relativistic electron bunch |
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| Authors: | A. G. Reutova M. R. Ul’maskulov A. K. Sharypov V. G. Shpak S. A. Shunailov M. I. Yalandin V. I. Belousov N. S. Ginzburg G. G. Denisov I. V. Zotova R. M. Rozental’ A. S. Sergeev |
| Affiliation: | (1) Institute of Electrophysics, Ural Division, Russian Academy of Sciences, ul. Amundsena 106, Yekaterinburg, 620016, Russia;(2) Institute of Applied Physics, Russian Academy of Sciences, ul. Ul’yanova 46, Nizhni Novgorod, 603950, Russia |
| Abstract: | The generation of ultrashort superradiant pulses in the stimulated scattering of an intense microwave (38 GHz) pump wave by a counterpropagating high-current relativistic electron bunch has been observed. Scattered radiation is a single ～200-ps pulse with a peak power of about 1 MW. Owing to the Doppler shift of the radiation frequency, frequencies up to 150 GHz are present in the spectrum of the scattered pulse. |
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