Zobrazeno 1 - 10
of 263
pro vyhledávání: '"Susumu Komiyama"'
Autor:
Qianchun Weng, Le Yang, Zhenghua An, Pingping Chen, Alexander Tzalenchuk, Wei Lu, Susumu Komiyama
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Minimizing the energy dissipation is usually sought by eliminating phonon-emission process. Here, the authors find a different approach for facilitating energy transmission at room temperature that electrons exert diffusive but quasiadiabatic transpo
Externí odkaz:
https://doaj.org/article/db032dd0a6c44bad90ee7bdb5487f82c
Autor:
Susumu Komiyama, Takeji Ueda
Publikováno v:
Sensors, Vol 10, Iss 9, Pp 8411-8423 (2010)
We have developed novel single-photon detectors in the 10–50 μm wavelength region. The detectors are charge-sensitive infrared phototransistors (CSIPs) fabricated in GaAs/AlGaAs double quantum well (QW) structures, in which a photo-generated hole
Externí odkaz:
https://doaj.org/article/8556d941a46e4092a309078c695c241c
Publikováno v:
ACS Photonics. 8:2674-2682
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61fc41941f5bd39fc39264d7d1b51ad4
https://doi.org/10.1021/acsphotonics.1c00686
https://doi.org/10.1021/acsphotonics.1c00686
Autor:
Pingping Chen, Le Yang, Susumu Komiyama, Qianchun Weng, Wei Lu, Zhenghua An, Alexander Tzalenchuk
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nature Communications
Nature Communications
Since the invention of transistors, the flow of electrons has become controllable in solid-state electronics. The flow of energy, however, remains elusive, and energy is readily dissipated to lattice via electron-phonon interactions. Hence, minimizin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a7c8a9d12699a6972b2ba942b534a3a
https://doaj.org/article/db032dd0a6c44bad90ee7bdb5487f82c
https://doaj.org/article/db032dd0a6c44bad90ee7bdb5487f82c
Publikováno v:
Review of Scientific Instruments. 94:023701
Passive scattering-type, scanning near-field optical microscopy (s-SNOM) has been employed to study localized, long-wavelength infrared (LWIR) surface waves without external illumination. Here, we develop a cryogenic passive s-SNOM instrument in a va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a56255d77c85868fc1de382e0d2219b4
https://doi.org/10.1063/5.0133575
https://doi.org/10.1063/5.0133575
Autor:
Susumu Komiyama, Iwao Hosako, Fumiyuki Inamura, Hirokazu Murano, Mikhail Patrashin, Gen Ueda, Kenji Ikushima, Sunmi Kim, K. Takizawa
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Monolayer graphene has a gapless and linear dispersion. Thanks to this unique dispersion, monolayer graphene has unequally Landau levels (LLs) and an extra LL at the charge neutral point. In this paper, we investigated the spectrum of infrared radiat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d2a24bfaca66ffab12789d2cbc3dc69
https://doi.org/10.1109/irmmw-thz50926.2021.9567196
https://doi.org/10.1109/irmmw-thz50926.2021.9567196
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Due to the lack of a nano-thermal imaging technique at low temperatures, we have developed a cryogenic scattering-type scanning near-field optical microscope (s-SNOM). The system mainly contains a highly sensitive long-wavelength infrared confocal op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1247dbbf7b9af71acff95b9314273f54
https://doi.org/10.1109/irmmw-thz46771.2020.9370457
https://doi.org/10.1109/irmmw-thz46771.2020.9370457
Autor:
Qianchun Weng, Kenji Yoshida, Kuan-Ting Lin, Hirofumi Nema, Susumu Komiyama, Kazuhiko Hirakawa, Sunmi Kim, Yusuke Kajihara
Publikováno v:
Nano Letters. 18:4220-4225
Probing spatial variation of temperature at the nanoscale provides key information for exploring diverse areas of modern science and technology. Despite significant progress in the development of contact thermometers with high spatial resolution, one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f106c7357c19932f3aae563bda044a47
https://doi.org/10.1021/acs.nanolett.8b01178
https://doi.org/10.1021/acs.nanolett.8b01178
Electrons in operating microelectronic semiconductor devices are accelerated by locally varying strong electric field to acquire effective electron temperatures nonuniformly distributing in nanoscales and largely exceeding the temperature of host cry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45fe9d22ed24535d7cbcb991aa7fad44
Autor:
Susumu Komiyama
Publikováno v:
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Noise is usually a hindrance to signal detection. This work, however, demonstrates that the noise is an invaluable signal that reveals kinetics of charge particles on nano-scales, which are otherwise inaccessible.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf8aca8ad60e4e2989087361f2bc5921
https://doi.org/10.1109/irmmw-thz.2018.8510105
https://doi.org/10.1109/irmmw-thz.2018.8510105