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The Discharge Maintained by High-Power Terahertz Radiation in a Nonuniform Gas Flow

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Radiophysics and Quantum Electronics Aims and scope

We have studied experimentally the discharge that occurs in a nonuniform gas flow in quasioptical electromagnetic radiation of the terahertz frequency range (the radiation power was equal to 100 kW, the frequency, to 0.67 THz, and the pulse duration, to 20 μs. The flow was formed by gas injection through a small-diameter aperture to the vacuum chamber under a background pressure of up to 10−3 Torr. The structure of the discharge in the range of background pressures from 10−3 to 102 Torr has been studied and the possibility to produce a discharge with characteristic plasma dimensions less than 1 mm has been demonstrated. The dynamics of the discharge luminescence in the optical range has been studied for various values of the background pressure and gas injection rate.

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Correspondence to M. Yu. Glyavin.

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Deceased (V. G. Zorin).

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 56, Nos. 8–9, pp. 622–627, August–September 2013.

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Glyavin, M.Y., Golubev, S.V., Zorin, V.G. et al. The Discharge Maintained by High-Power Terahertz Radiation in a Nonuniform Gas Flow. Radiophys Quantum El 56, 561–565 (2014). https://doi.org/10.1007/s11141-014-9459-z

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  • DOI: https://doi.org/10.1007/s11141-014-9459-z

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