Kurosaka, Yoshitaka
Hirose, Kazuyoshi
Sugiyama, Takahiro
Takiguchi, Yu
Nomoto, Yoshiro
Article History
Received: 27 January 2016
Accepted: 22 June 2016
First Online: 26 July 2016
Competing interests
: All authors are employees of Hamamatsu Photonics K.K.