5 papers
Systematic study of superconductivity in few-layer -MoTe
Taro Wakamura, Masayuki Hashisaka, Yusuke Nomura +7
We present a systematic investigation of superconductivity in a topological superconductor candidate -MoTe in the few-layer limit. By examining multiple mechanically…
Intrinsic ultrafast edge photocurrent dynamics in WTe driven by broken crystal symmetry
Subhashri Chatterjee, Katsumasa Yoshioka, Taro Wakamura +2
Directional photocurrents in two-dimensional materials arise from broken crystal symmetry, offering pathways to high-speed, bias-free photodetection beyond conventional devices. Tu…
Super-diffusive sub-picosecond extraction of hot carriers in black phosphorous
Katsumasa Yoshioka, Taro Wakamura, Takuya Okamoto +1
Harvesting hot carriers before they lose energy to the lattice is a critical route toward surpassing the conventional thermodynamic limit in optical-to-electrical (O-E) conversion.…
On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics
Katsumasa Yoshioka, Guillaume Bernard, Taro Wakamura +6
Steering transport of ultrashort polariton wavepackets is essential for achieving on-chip integrated nanocircuits with tightly confined electromagnetic fields towards ultrafast inf…
Ultrafast intrinsic optical-to-electrical conversion dynamics in graphene photodetector
Katsumasa Yoshioka, Taro Wakamura, Masayuki Hashisaka +3
Optical-to-electrical (O-E) conversion in graphene is a central phenomenon for realizing anticipated ultrafast and low-power-consumption information technologies. However, revealin…