Recent publications
- Homemade-HEMT-based transimpedance amplifier for high-resolution shot-noise measurements
Takase Shimizu, Masayuki Hashisaka, Heorhii Bohuslavskyi, Takafumi Akiho, Norio Kumada, Shingo Katsumoto, and Koji Muraki
Rev. Sci. Inst. 92, 124712 (2021).
- Excitonic nature of magnons in a quantum Hall ferromagnet
A. Assouline, M. Jo, P. Brasseur, K. Watanabe, T. Taniguchi, Th. Jolicoeur, D. C. Glattli, N. Kumada, P. Roche, F. D. Parmentier, and P. Roulleau
Nature Phys. 17, 1369 (2021).
- Quantum Hall Valley Splitters and a Tunable Mach-Zehnder Interferometer in Graphene
M. Jo, P. Brasseur, A. Assouline, G. Fleury, H.-S. Sim, K. Watanabe, T. Taniguchi, W. Dumnernpanich, P. Roche, D. C. Glattli, N. Kumada, F. D. Parmentier, and P. Roulleau
Phys. Rev. Lett. 126, 146803 (2021). (Featured in Physics, Editors' suggestion)
- On-chip coherent frequency-domain THz spectroscopy for electrical transport
Katsumasa Yoshioka, Norio Kumada, Koji Muraki, Masayuki Hashisaka
Appl. Phys. Lett. 117, 161103 (2020). (editor's pick)
- Suppression of gate screening on edge magnetoplasmons by highly resistive ZnO gate
N. Kumada, N.-H. Tu, K.-i. Sasaki, T. Ota, M. Hashisaka, S. Sasaki, K. Onomitsu, and K. Muraki
Phys. Rev. B 101, 205205 (2020).
- Active spatial control of terahertz graphene plasmons
Ngoc Han Tu, Katsumasa Yoshioka, Satoshi Sasaki, Makoto Takamura, Koji Muraki, and Norio Kumada
Commun. Mater. 1, 7 (2020).
Presentations in international conferences in the last one year and those upcoming
- Ultrafast Time-resolved Electrical Readout of Photocurrent in Graphene Photodetector Using On-chip THz Spectroscopy
K. Yoshioka, T. Wakamura, M. Hashisaka, K. Watanabe, T. Taniguchi, N. Kumada
ISNTT2021
- Time-resolved Measurement of Chiral Edge Transport in InAs/InGaSb Composite Quantum Wells
H. Kamata, H. Irie, N. Kumada, K. Muraki
ISNTT2021
- High-precision Current-noise Measurements Using Homemade-HEMT-based Transimpedance Amplifiers
T. Shimizu, M. Hashisaka, H. Bohuslavskyi, T. Akiho, N. Kumada, S. Katsumoto, K. Murak
ISNTT2021
- Spatial Control of Graphene Plasmons in the THz Range
Norio Kumada, Ngoc Han Tu, Katsumasa Yoshioka, Satoshi Sasaki, Makoto Takamura, Koji Muraki
EP2DS-24
- Ultrafast Electrical Readout of Photocurrent in hBN-encapsulated Graphene Using On-chip THz Spectroscopy
Katsumasa Yoshioka, Taro Wakamura, Masayuki Hashisaka, Kenji Watanabe, Takashi Taniguchi, Norio Kumada
EP2DS-24
- (Invited) Unveiling excitonic properties of magnons in a quantum Hall ferromagnet
P. Roulleau, A. Assouline, M. Jo, P. Brasseur, K. Watanabe, T. Taniguchi, T. Jolicoeur, D. C. Glattli, N. Kumada, P. Roche, F. Parmentier
EP2DS-24
- Tunable Mach-Zehnder Interferometer in Graphene
A. Assouline, M. Jo, P. Brasseur, G. Fleury, H.-S. Sim, K. Watanabe, T. Taniguchi, W. Dumnernpanich, P. Roche, C. D. Glattli, N. Kumada, F. Parmentier, P. Roulleau
EP2DS-24
- High-Precision Noise Cross-Correlation Measurement Using Homemade-HEMT-Based Transimpedance Amplifiers
Takase Shimizu, Masayuki Hashisaka, Heorhii Bohuslavskyi, Takafumi Akiho, Norio Kumada, Shingo Katsumoto, Koji Muraki
EP2DS-24
- On-chip time-resolved charge detection in InAs/GaSb composite quantum wells
Hiroshi Kamata, Hiroshi Irie, Norio Kumada, and Koji Muraki
EP2DS-24
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