25 citations · 26 across the 5 of their papers we have counts for
5 papers
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.…
1-MHz operation of 1.7-cycle multiple plate compression at 35-W average output power
Takuya Okamoto, Yoji Kunihashi, Yasushi Shinohara +3
We generated 1.7-cycle and 35-J pulses at a 1-MHz repetition rate by using two-stage multiple plate continuum compression of Yb-laser pulses with 80-W average input power. By ad…
On a unified double zeta function of Mordell--Tornheim type
Shin-ya Kadota, Takuya Okamoto, Masataka Ono +1
We introduce the unified double zeta function of Mordell--Tornheim type and compute its values at non-positive integer points. We then discuss a possible generalization of the Kane…
Topological effects of three-dimensional porous graphene on Dirac quasiparticles
Takuya Okamoto, Yoshikazu Ito, Naoka Nagamura +3
This paper reports on the topological effects of three-dimensional (3D) porous graphene with tunable pore sizes and a preserved 2D graphene system of Dirac quasiparticles on its el…
Evaluation of Tornheim's type of double series
Shin-ya Kadota, Takuya Okamoto, Koji Tasaka
We examine values of certain Tornheim's type of double series with odd weight. As a result, an affirmative answer to a conjecture about the parity theorem for the zeta function of…