Katsumasa Yoshioka

NTT Basic Research Laboratories — Japan

Engineering · Physical Sciences

12h-index739citations55works3.22yr avg
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Research Topics

Terahertz technology and applications(27), Photonic and Optical Devices(19), Semiconductor Quantum Structures and Devices(15), Plasmonic and Surface Plasmon Research(15), Quantum and electron transport phenomena(11)

Publications55 total

Intrinsic Ultrafast Edge Photocurrent Dynamics in WTe <sub>2</sub> Driven by Broken Crystal Symmetry
Nano Letters·2025Open Access
Propagation Control of Ultrashort Plasmon Wavepacket in Graphene
2025
Super-diffusive sub-picosecond extraction of hot carriers in black phosphorous
arXiv (Cornell University)·2025Open Access
Author Correction: On-chip transfer of ultrashort graphene plasmon wave packets using terahertz electronics
Nature Electronics·2025Open Access
Author Correction: Ultrafast intrinsic optical-to-electrical conversion dynamics in a graphene photodetector
Nature Photonics·2025Open Access
On-chip transfer of ultrashort graphene plasmon wave packets using terahertz electronics
Nature Electronics·2024· 19 cited
On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics
arXiv (Cornell University)·2023Open Access
Ultrafast Optical-to-electrical Conversion Processes in Graphene
NTT technical review·2023· 1 cited
Tracking Ultrafast Photocurrent Generation and Transport in hBN-Encapsulated Graphene Using On-Chip THz Spectroscopy
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)·2022· 1 cited
Ultrafast intrinsic optical-to-electrical conversion dynamics in a graphene photodetector
Nature Photonics·2022· 98 cited
Efficient Graphene-Based Photodetector with an Asymmetric Hybrid Plasmonic Waveguide
2022
(Invited) Development of THz-Field-Driven Scanning Tunneling Luminescence Spectroscopy for Future Investigation of Exciton Dynamics
ECS Meeting Abstracts·2022
Ultrafast intrinsic optical-to-electrical conversion dynamics in graphene photodetector
arXiv (Cornell University)·2022· 1 citedOpen Access
Efficient graphene-based photodetector with an asymmetric hybrid plasmonic waveguide
2022· 1 cited
Terahertz-Field-Driven Scanning Tunneling Luminescence Spectroscopy
ACS Photonics·2021· 33 cited
Investigation of luminescence from a localized plasmon induced by THz-field-driven tunneling electrons
The Japan Society of Applied Physics·2021
Design of an ultrafast photodetector based on a graphene loaded asymmetric hybrid plasmonic waveguide
The Japan Society of Applied Physics·2021
Nanoscale phase change on Ge2Sb2Te5 thin films induced by optical near fields with photoassisted scanning tunneling microscope
Applied Physics Letters·2020· 3 citedOpen Access
Observation of Photoinduced Terahertz Gain in GaAs Quantum Wells: Evidence for Radiative Two-Exciton-to-Biexciton Scattering
Physical Review Letters·2020· 4 citedOpen Access
Observation of Terahertz Gain in Two-Dimensional Magnetoexcitons
arXiv (Cornell University)·2020· 1 citedOpen Access
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Frequent Co-authors

Jun Takeda(25), Ikufumi Katayama(23), Yusuke Arashida(15), N. Kumada(14), Taro Wakamura(11), Shoji Yoshida(9), Hidemi Shigekawa(9), Masayuki Hashisaka(9), Yasuo Minami(8), Junichiro Kono(8), Masahiro Kitajima(7), Xinwei Li(7), Weilu Gao(7), Kenji Watanabe(7), Takashi Taniguchi(7), Michael J. Manfra(6), G. Timothy Noe(6), Y. Kawada(5), H. Takahashi(5), K. Asakawa(5)