S
Svilen Sabchevski
Researcher at Bulgarian Academy of Sciences
Publications - 99
Citations - 1205
Svilen Sabchevski is an academic researcher from Bulgarian Academy of Sciences. The author has contributed to research in topics: Gyrotron & Terahertz radiation. The author has an hindex of 17, co-authored 96 publications receiving 1050 citations. Previous affiliations of Svilen Sabchevski include Karlsruhe Institute of Technology & European Atomic Energy Community.
Papers
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Journal ArticleDOI
A high harmonic gyrotron with an axis-encircling electron beam and a permanent magnet
Toshitaka Idehara,Isamu Ogawa,Seitaro Mitsudo,Y. Iwata,S. Watanabe,Y. Itakura,K. Ohashi,H. Kobayashi,T. Yokoyama,V. E. Zapevalov,Mikhail Yu. Glyavin,A. N. Kuftin,O. V. Malygin,Svilen Sabchevski +13 more
TL;DR: In this paper, a gyrotron with an axis-encircling electron beam is capable of high-frequency operation, because the high-beam efficiency is kept even at high harmonics of the electron cyclotron frequency.
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Development of THz Gyrotrons at IAP RAS and FIR UF and Their Applications in Physical Research and High-Power THz Technologies
TL;DR: In this article, the authors present some of the most significant recent results that characterize the state of the art in the development of sub-THz and THz gyrotrons at IAP-RAS and FIR-UF.
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Direct observation of the hyperfine transition of ground-state positronium
T. Yamazaki,A. Miyazaki,Taikan Suehara,Toshio Namba,Shoji Asai,T. Kobayashi,Haruo Saito,Isamu Ogawa,Toshitaka Idehara,Svilen Sabchevski +9 more
TL;DR: A new optical system to accumulate about 10 kW power using a gyrotron, a mode converter, and a Fabry-Pérot cavity is developed and the first direct measurement of the hyperfine transition of the ground state positronium is reported.
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Development and Applications of High—Frequency Gyrotrons in FIR FU Covering the sub-THz to THz Range
TL;DR: In this paper, the authors outline two series of gyro-devices, namely pulsed gyrotrons and gyrotron FU CW Series, which consist of tubes operated in a continuous wave or long pulse mode, both developed at the FIR FU Center.
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The potential of the gyrotrons for development of the sub-terahertz and the terahertz frequency range — A review of novel and prospective applications
Toshitaka Idehara,Teruo Saito,Isamu Ogawa,Seitaro Mitsudo,Yoshinori Tatematsu,Svilen Sabchevski,Svilen Sabchevski +6 more
TL;DR: Some recent advancements in the development of powerful high frequency gyrotrons that generate coherent radiation in the sub-terahertz and terahertz regions of the electromagnetic spectrum as well as their typical and novel applications are presented and discussed.