203 citations · 1k across the 30 of their papers we have counts for
4 papers · 1 filter
Geometry-dependent spectra and coherent-transient measurement of nearly degenerate four-wave mixing using two-photon resonance
Hideaki Hara, Yuki Miyamoto, Takahiro Hiraki +7
We study nearly degenerate four-wave mixing using a two-photon-allowed vibrational transition of parahydrogen. A signal photon is generated by a trigger photon and coherence among…
Energy response of X-rays under high flux conditions using a thin APD for the energy range of 6-33 keV
T. Masuda, T. Hiraki, H. Kaino +10
This paper reports on the demonstration of a high-rate energy measurement technique using a thin depletion layer silicon avalanche photodiode (Si-APD). A dedicated amplitude-to-tim…
Coherent two-photon emission from hydrogen molecules excited by counter-propagating laser pulses
Takahiro Hiraki, Hideaki Hara, Yuki Miyamoto +7
We observed two-photon emission signals from the first vibrationally excited state of parahydrogen gas excited coherently by counter-propagating laser pulses. A single narrow-linew…
Nature of the high-speed rupture of the two-dimensional Burridge-Knopoff model of earthquakes
Hikaru Kawamura, Koji Yoshimura, Shingo Kakui
The nature of the high-speed rupture or the main shock of the Burridge-Knopoff spring-block model in two dimensions obeying the rate-and-state dependent friction law is studied by…