Assistant Professor SOGA Yukihiro
Faculty, Affiliation
Faculty of Mathematics and Physics, Institute of Science and Engineering
College and School Educational Field
Division of Mathematical and Physical Science, Graduate School of Natural Science and Technology
Course in Physics, School of Mathematics and Physics, College of Science and Engineering
Laboratory
Academic Background
Career
Year & Month of Birth
Academic Society
Award
Specialities
Plasma Physics
Speciality Keywords
Non-neutral plasma, THz wave, BWO, Electron beam
Research Themes
Experimental investigation of the backward wave oscillator with terahertz range in terms of plasma science
Through this research, I seek to achieve higher frequency and higher power output of terahertz light source using non-neutral plasma that is made only of electrons that are highly controllable and measurable. I approach this goal by demonstrating various processes of multiparticle system relaxation phenomena in an amplified fashion and experimentally investigating the basic characteristics of the physical phenomenon that is shown by electron beams emitting terahertz-range electromagnetic waves in electronic valves.
Books
Papers
- Propagation of Intense Electron Beams Through a Rectangular Tube IEEE Transactions on Plasma Science 2020/10
- A Single-Shot Method for Measuring the Energy Spectra of Pure Electron Plasmas Driven by E x B Rotation Plasma and Fusion Research 2019/02
- Dynamics of two discrete vortices with different circulations composed of pure electron plasmas Yukihiro Soga, Yasuhiro Mihara, and Youngsoo Park AIP Conf. Proc. 1668 030002 2015/06
- Mechanisms of E × B Drift Rotation of a Vortex String in a Pure Electron Plasma Y. Soga, T. Mimura, Y. Kato and Y. Park Plasma Fusion Res. 8 2401034 2013/04
- Parallel Energy Analysis of a Pure Electron Plasma with a Drifting Maxwellian Distribution Yukihiro Soga, Youngsoo Park, Masayuki Sato, Nozomi Suzutani, and Takashi Kikuchi Journal of the Physical Society of Japan 2023/09/11
Conference Presentations
- A Ka-band Backward-Wave Oscillator with Grating Slow-Wave Structure Developed by a Simplified Approach(conference：IRMMW-THz2019)(2019/09/01)
Others
Arts and Fieldwork
Patent
Theme to the desired joint research
○Simulation of high-frequency electromagnetic waves
○Development of high-luminosity thermal electron gun
Grant-in-Aid for Scientific Research
○「密度限界へ遷移する非中性プラズマの時空間構造解明と大強度イオンビーム制御への応用」(2017-2019)
○「炭酸ガスレーザーを用いたTHz局在励起の研究」(2016-2018)
○「複数電子ビームによる平板型自由電子メーザーの実験的研究」(2014-2016)
○「点渦系平均場方程式のｍ点爆発解と純電子プラズマが形成するｍ点渦結晶の統一的理解」(2014-2015)
○「定常テラヘルツ帯電子管のプラズマ科学的基礎研究」(2009-2010)
Competitive research funding,Contribution
Collaborative research,Consignment study
Classes (Bachelors)
○Experiments in Fundamental Physics(2017)
○Community learning "Super" Experience Program(2017)
○Physics Experiments 2(2017)
○Exercise in Thermodynamics Statistical Mechanics 2(2017)
○Presentation and Debate (Freshman Seminar II)(2017)
○Freshman Seminar I(2017)
○Presentation and Debate (Freshman Seminar II)(2017)
○Physics Experiments 1(2017)
○Introduction to Region-studies(2016)
○Presentation and Debate (Freshman Seminar II)(2016)
○Physics Experiments 2(2016)
○Exercise in Thermodynamics Statistical Mechanics 2(2016)
○Physics Experiments 1(2016)
○Experiments in Fundamental Physics(2016)
○Freshman Seminar I(2016)
Classes (Graduate Schools)
○Physics of Oscillations and Waves b(2017)
○Research Work B(2017)
○Physics of Oscillations and Waves a(2017)
○Seminar B(2017)
○Exercise B(2017)
○Plasma Physics b(2017)
○Plasma Physics a(2017)
○Plasma Physics b(2016)
○Research Work B(2016)
○Physics of Oscillations and Waves b(2016)
○Seminar B(2016)
○Physics of Oscillations and Waves a(2016)
○Exercise B(2016)
○Plasma Physics a(2016)