Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Shin'Ichiro Hayashi"'
Publikováno v:
Photonics, Vol 6, Iss 1, p 33 (2019)
Recent progress has been made in the development of terahertz (THz) waves for practical applications. Few studies that have assessed the biological effects of THz waves have been reported, and the data currently available regarding the safety of THz
Externí odkaz:
https://doaj.org/article/2787a62a5f974d10872ef50d056d8b58
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76eb7e6120f6c805698e1e0898a3b986
https://doi.org/10.1109/irmmw-thz50927.2022.9895969
https://doi.org/10.1109/irmmw-thz50927.2022.9895969
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
In this study, we developed a real-time measurement system using a pulse train THz wave from an is-TPG. Each wavelength was generated/detected in nanosecond intervals by inputting the pulse train pump beam to the crystal. Gain competition between wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ff0f8865c43f11556ee4e08a0b9b1d8
https://doi.org/10.1109/irmmw-thz46771.2020.9370532
https://doi.org/10.1109/irmmw-thz46771.2020.9370532
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We propose continuously tunable terahertz-wave parametric source based on spectral drill cavity. When controlling of terahertz wave frequency by wavelength conversion using a nonlinear crystal, we have to control two laser beams. One is a frequency s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d06bc80611edcc840b6bb1d2d135e5
https://doi.org/10.1109/irmmw-thz46771.2020.9370657
https://doi.org/10.1109/irmmw-thz46771.2020.9370657
Publikováno v:
Frontiers in Optics / Laser Science.
We developed a pulse trained Terahertz parametric generator. Each wavelength was generated in nanosecond intervals by the pulse train pump beam to the crystal. This system enables real-time identification of reagents under shielding materials.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e68bd3b4bbe84b9a927bb8617d2416a4
https://doi.org/10.1364/fio.2020.fw7f.6
https://doi.org/10.1364/fio.2020.fw7f.6
Publikováno v:
PHOTOPTICS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c6c862fd5e075997a53c3fe40afd8a
https://doi.org/10.5220/0008959400970099
https://doi.org/10.5220/0008959400970099
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We demonstrated single-longitudinal-mode, continuously tunable (1.54 – 1.60 μm) and pulsed (~ 1 ns) parametric sources by injection-seeded PPLN-OPG / KTA-OPA as stabilized and tunable (controlled by “spectral drill” cavity) beams for terahertz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::846d1b029f18f69e850de2bc5a822e93
https://doi.org/10.1364/cleopr.2020.p3_6
https://doi.org/10.1364/cleopr.2020.p3_6
Publikováno v:
Journal of Radiation Research
This study investigated the effects of millimeter wave (MMW) irradiation with a wide range of frequencies on the proliferation and activity of normal human skin fibroblast (NB1RBG) and human glioblastoma (A172) cells. Very few studies have focused on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1082e7a532f27550db0aa475adcb28a3
https://doi.org/10.1093/jrr/rrx075
https://doi.org/10.1093/jrr/rrx075
Autor:
Shin'ichiro Hayashi, Yuma Takida, Kazuki Imayama, Kodo Kawase, Vincent Yahia, Kouji Nawata, Hiroaki Minamide, Takunori Taira, Kousuke Murate, Hideki Ishizuki
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 7:617-620
Injection-seeded terahertz (THz)-wave parametric generation pumped by subnanosecond pulses was demonstrated as an exploration of the effective pump pulse width. In experiments, pump sources with different pump widths of 35–850 ps were used. The rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96ad8ace715f8c8e0b2603d896b9f7df
https://doi.org/10.1109/tthz.2017.2725479
https://doi.org/10.1109/tthz.2017.2725479
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We propose an optical heterodyne detection in the terahertz region using parametric up-conversion in a nonlinear LiNbO 3 crystal for accurate frequency measurement. Nonlinear wavelength up-conversion techniques based on frequency stabilized infrared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de6845db22a46534273b19d6a6dbe77e
https://doi.org/10.1109/irmmw-thz.2019.8874117
https://doi.org/10.1109/irmmw-thz.2019.8874117