Zobrazeno 1 - 10
of 297
pro vyhledávání: '"Chiko Otani"'
Autor:
Juan F. Hernández-Cabrera, Javier De Miguel, Enrique Joven Álvarez, E. Hernández-Suárez, J. Alberto Rubiño-Martín, Chiko Otani
Publikováno v:
Symmetry, Vol 16, Iss 2, p 163 (2024)
The axion is a long-postulated boson that can simultaneously solve two fundamental problems of modern physics: the charge–parity symmetry problem in the strong interaction and the enigma of dark matter. In this work, we estimate, by means of Monte
Externí odkaz:
https://doaj.org/article/e10a9d4334fc4e62a836c8de9279630c
Publikováno v:
Applied Sciences, Vol 14, Iss 1, p 35 (2023)
Three different cocoa butter polymorphs have been determined by X-ray diffraction (XRD) and terahertz spectroscopy in the range of 0–11 THz. Specific procedures to produce different types of crystallization were detailed. The results from XRD analy
Externí odkaz:
https://doaj.org/article/e714f3f363f646b38b5ed8cdd746a020
Publikováno v:
Photonics, Vol 10, Iss 3, p 343 (2023)
Imaging using millimeter waves (MMW) and terahertz (THz) waves can help inspect hazardous materials hidden beneath clothing in a non-contact and non-invasive manner. A 3D terahertz imaging system for security gate applications in the 275–305 GHz ra
Externí odkaz:
https://doaj.org/article/6e9477d1de254734a44d3b23067ced73
Autor:
Shota Yamazaki, Yuya Ueno, Ryosuke Hosoki, Takanori Saito, Toshitaka Idehara, Yuusuke Yamaguchi, Chiko Otani, Yuichi Ogawa, Masahiko Harata, Hiromichi Hoshina
Publikováno v:
PLoS ONE, Vol 16, Iss 8 (2021)
Biological phenomena induced by terahertz (THz) irradiation are described in recent reports, but underlying mechanisms, structural and dynamical change of specific molecules are still unclear. In this paper, we performed time-lapse morphological anal
Externí odkaz:
https://doaj.org/article/302a996dc2664b6c861c71a7061e418a
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043143 (2021)
Electron-electron (e-e) interaction is known as a source of logarithmic renormalizations for Dirac fermions in quantum field theory. The renormalization of electron-optical phonon coupling (EPC) by e-e interaction, which plays a pivotal role in hot c
Externí odkaz:
https://doaj.org/article/2f2fdb62b0344a4fac26b187c438e9ee
Autor:
Masatsugu Yamashita, Chiko Otani
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013150 (2021)
We present a numerical study on the intraband optical conductivity of hot carriers at quasiequilibria in photoexcited graphene based on the semiclassical Boltzmann transport equations (BTE) with the aim of understanding the effects of intrinsic optic
Externí odkaz:
https://doaj.org/article/aaad74b0ead746518c5a898a622c6e0c
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 1, Iss 3, Pp 338-345 (2007)
We present a method of detecting production faults in flexible plastic packages using terahertz (THz) radiation. A focused THz beam is scanned along the sealed area of a package, and the transmitted signal is collected. Defect detection is effected t
Externí odkaz:
https://doaj.org/article/8accaa7144f54158b91904799c7dc00c
Autor:
Takahiro Kikuchi, Shintaro Ikuine, Hiroyuki Takahashi, Chiko Otani, Yuki Mitsuya, Ryan Smith, Satoshi Kohjiro, Masashi Ohno, Yoshitaka Miura
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-4
We are currently developing transition edge sensors (TES) for the gamma-ray spectroscopy using a single gold bump post to connect the bulk metal absorber to the superconducting thin film. In order to develop a multi-pixel TES array for the gamma-ray
Autor:
Chiko OTANI
Publikováno v:
Journal of The Surface Finishing Society of Japan. 72:429-432
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).