Study on dynamic fluctuation by terahertz and FIR spectroscopy using metal parallel-plate waveguide
Project/Area Number |
16K05649
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Physical chemistry
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Research Institution | University of Fukui |
Principal Investigator |
Yamamoto Kohji 福井大学, 遠赤外領域開発研究センター, 准教授 (70432507)
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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Keywords | テラヘルツ分光 / 遠赤外分光 / 金属導波路 / テラヘルツ / 遠赤外 / テラヘルツ/赤外材料・素子 / 化学物理 / 誘電体物性 / 生物物理 / 応用光学・量子光工学 |
Outline of Final Research Achievements |
We investigated transmission properties of terahertz waves through a metal parallel-plate waveguide sandwiching a plastic tube. We have taken a forward step in developing terahertz spectroscopy using a minute fluid channel. We showed that loss attenuation peaks observed in this system can be applied in terahertz spectroscopy from terahertz spectroscopic experimental results as well as those obtained by computer simulations based on the finite element method. We experimentally investigated dynamical fluctuations of human adult hemoglobin (Hb A) originating cotroling oxygen affinity. We obtained fluctuation properties of the main chain of Hb A in high and low oxygen affinity.
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Academic Significance and Societal Importance of the Research Achievements |
金属導波路を用いて微量液体流路をカップルさせた金属導波路の開発を進めることができ、タンパク質の「機能発現」と「テラヘルツ領域の揺らぎ」との相関に関する新たな知見を得ることに成功し、テラヘルツ分光が動的揺らぎの研究の進展に寄与することを示した。
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Report
(5 results)
Research Products
(18 results)
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[Journal Article] Study on irradiation effect of mid-infrared free electron laser on hen egg-white lysozyme by using terahertz-time domain spectroscopy and synchrotron radiation vacuum-ultraviolet circular-dichroism spectroscopy2019
Author(s)
T. Kawasaki, Y. Izumi, G. Ohori, H. Kitahara, T. Furuya, K. Yamamoto, K. Matsuo, M. Tani, K. Tsukiyama
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Journal Title
Journal of Infrared, Millimeter, and Terahertz Waves
Volume: 40
Issue: 10
Pages: 998-1009
DOI
Related Report
Peer Reviewed
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[Journal Article] Terahertz emission characteristics of GaMnAs dilute magnetic semiconductor under 650 mT external magnetic field2017
Author(s)
Alexander De Los Reyes, Elizabeth Ann Prieto, Karim Omambac, Jeremy Porquez, Lorenzo Lopez Jr., Karl Cedric Gonzales, John Daniel Vasquez, Mae Agatha Tumanguil, Joselito Muldera, Kohji Yamamoto, Masahiko Tani, Armando Somintac, Elmer Estacio, and Arnel Salvador
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Journal Title
Curr. Appl. Phys.
Volume: 17
Issue: 4
Pages: 522-526
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Cherenkov-phase-matched nonlinear optical detection and generation of terahertz radiation via GaAs with metal-coating2016
Author(s)
Ramon delos Santos, Shinpei Ozawa, Valynn Mag-usara, Syougo Azuma, Anthony Tuico, Vernalyn Copa, Arnel Salvador, Kohji Yamamoto, Armando Somintac, Kazuyoshi Kurihara, Hideaki Kitahara, Masahiko Tani and Elmer Estacio
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Journal Title
Optics Express
Volume: 24
Issue: 22
Pages: 24980-24988
DOI
Related Report
Peer Reviewed
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[Journal Article] Low temperature-grown GaAs carrier lifetime evaluation by double optical pump terahertz time-domain emission spectroscopy2016
Author(s)
Valynn Katrine Mag-usara, Stefan Funkner, Gudrun Niehues, Elizabeth Ann Prieto, Maria Herminia Balgos, Armando Somintac, Elmer Estacio, Arnel Salvador, Kohji Yamamoto, Muneaki Hase, Tani, Masahiko
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Journal Title
Optics Express
Volume: 24
Issue: 23
Pages: 26175-26185
DOI
Related Report
Peer Reviewed
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[Presentation] Sensitivity Improvement of Heterodyne Electro-Optic Sampling2018
Author(s)
Hideaki Kitahara, Takuro Yasumoto, Daiki Goto, Hiroyuki Kato, Masaki Shiihara, Jessica Afalla, Valynn Mag-usara, Kohji Yamamoto, Takashi Furuya, Elmer Estacio, Michael Bakunov, and Masahiko Tani
Organizer
2018 43rd International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2018)
Related Report
Int'l Joint Research
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