Y
Yoshinori Tatematsu
Researcher at University of Fukui
Publications - 199
Citations - 2023
Yoshinori Tatematsu is an academic researcher from University of Fukui. The author has contributed to research in topics: Gyrotron & Terahertz radiation. The author has an hindex of 24, co-authored 194 publications receiving 1796 citations.
Papers
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Journal ArticleDOI
Review of Subterahertz and Terahertz Gyrodevices at IAP RAS and FIR FU
V. L. Bratman,Mikhail Yu. Glyavin,Toshitaka Idehara,Y. K. Kalynov,A. G. Luchinin,Vladimir N. Manuilov,Seitaro Mitsudo,Isamu Ogawa,Teruo Saito,Yoshinori Tatematsu,V. E. Zapevalov +10 more
TL;DR: In this article, the authors demonstrate single-mode operation at the second cyclotron harmonic with a frequency of 395 GHz in the CW regime with a power of 100 W and at the third harmonic with frequencies of 371-414 GHz in 10-mus pulses with power of 10-20 kW.
Journal ArticleDOI
Development of a Novel High Power Sub-THz Second Harmonic Gyrotron
Takashi Notake,Teruo Saito,Yoshinori Tatematsu,A. Fujii,Shinya Ogasawara,La Agusu,Isamu Ogawa,Toshitaka Idehara,Vladimir N. Manuilov +8 more
TL;DR: Record-breaking high power coherent radiation at a subterahertz frequency region from a gyrotron utilizing second harmonic resonance modes was attained with a simple cavity because the oscillation mode was selected carefully enough to realize stable radiation free from mode competition.
Journal ArticleDOI
Spectrum response and analysis of 77 GHz band collective Thomson scattering diagnostic for bulk and fast ions in LHD plasmas
Masaki Nishiura,Shin Kubo,Kenji Tanaka,Ryosuke Seki,Shinya Ogasawara,Takashi Shimozuma,K. Okada,Shiro Kobayashi,Takashi Mutoh,Kazuo Kawahata,T. Watari,Teruo Saito,Yoshinori Tatematsu,Søren Bang Korsholm,Mirko Salewski +14 more
TL;DR: A collective Thomson scattering (CTS) diagnostic was developed and used to measure the bulk and fast ions originating from 180-keV neutral beams in the Large Helical Device (LHD) as mentioned in this paper.
Journal ArticleDOI
Generation of high power sub-terahertz radiation from a gyrotron with second harmonic oscillation
Teruo Saito,Naoki Yamada,Shinji Ikeuti,Shinya Ogasawara,Yoshinori Tatematsu,Ryosuke Ikeda,Isamu Ogawa,Toshitaka Idehara,Vladimir N. Manuilov,Takashi Shimozuma,Shin Kubo,Masaki Nishiura,Kenji Tanaka,Kazuo Kawahata +13 more
TL;DR: Ohyabu et al. as mentioned in this paper proposed a cavity mode to avoid mode competition with a neighboring fundamental harmonic mode, which achieved an oscillation power of 83 εkW at about 389 GHz.
Journal ArticleDOI
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.