Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Iwao Hosako"'
Autor:
Tomoki Hiraoka, Takashi Arikawa, Hiroaki Yasuda, Yuta Inose, Norihiko Sekine, Iwao Hosako, Hiroshi Ito, Koichiro Tanaka
Publikováno v:
APL Photonics, Vol 6, Iss 2, Pp 021301-021301-7 (2021)
We studied the injection-locking properties of a resonant-tunneling-diode terahertz oscillator in the small-signal injection regime with a frequency-stabilized continuous THz wave. The linewidth of the emission spectrum dramatically decreased to less
Externí odkaz:
https://doaj.org/article/647c19a43ee74da8a52e53f5f97a3883
Autor:
Isao Morohashi, Yoshihisa Irimajiri, Akira Kawakami, Tadashi Kishimoto, Pham Tien Dat, Atsuhi Kanno, Norihiko Sekine, Iwao Hosako
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
Wireless transmission of QPSK signals at 2 THz has been demonstrated using modulator-based optical combs for the transmitter and hot electron bolometer mixers combined with phase-locked terahertz quantum cascade lasers for the receiver.
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Publikováno v:
IEEE Communications Magazine. 58:28-33
With the ratification of the IEEE 802.15.3d amendment to 802.15.3, a first step has been made to standardize consumer wireless communications in the sub-THz frequency band. IEEE 802.15.3d offers switched point-to-point connectivity with data rates of
Autor:
Boqi Qiu, Yoshihisa Irimajiri, Kazuhiko Hirakawa, Iwao Hosako, Ya Zhang, Isao Morohashi, Norihiko Sekine
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 41:675-684
The impact of the response speed of a microelectromechanical system (MEMS) bolometer on the quality of terahertz (THz) imaging with rapid scan has been investigated and compared with a pyroelectric detector (PED). The imaging system was an active ima
Publikováno v:
Springer Series in Optical Sciences ISBN: 9783030737375
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5540bbc4bc9cfd287f7b8459e97dea3f
https://doi.org/10.1007/978-3-030-73738-2_52
https://doi.org/10.1007/978-3-030-73738-2_52
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
Autor:
Isao Morohashi, Norihiko Sekine, Ikufumi Katayama, Mayu Kirigaya, Iwao Hosako, Yoshihisa Irimajiri
Publikováno v:
Optics letters. 44(3):487-490
Using a frequency-tunable optical comb generated from a Mach-Zehnder-modulator-based flat comb generator (MZ-FCG) and a nonlinear optical fiber, we demonstrated a frequency measurement of continuous terahertz wave sources with the frequency of 0.1 an
Autor:
Iwao HOSAKO
Publikováno v:
Vacuum and Surface Science. 65:255-255
Autor:
Norihiko Sekine, Koichiro Tanaka, Iwao Hosako, Takashi Arikawa, Tomoki Hiraoka, Hiroaki Yasuda, Yuta Inose, Hiroshi Ito
Publikováno v:
APL Photonics, Vol 6, Iss 2, Pp 021301-021301-7 (2021)
We studied the injection-locking properties of a resonant-tunneling-diode terahertz oscillator in the small-signal injection regime with a frequency-stabilized continuous THz wave. The linewidth of the emission spectrum dramatically decreased to less
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6b562b99fecd3e429680734d71e062e
http://arxiv.org/abs/2101.04828
http://arxiv.org/abs/2101.04828