School of Engineering;
Osaka University;
2-1 Yamada-oka;
Suita;
Osaka 565-0871;
Japan;
Faculty of Engineering;
Osaka University;
2-1 Yamada-oka;
Suita;
Osaka 565-0871;
Japan;
Hamamatsu Photonics K.K.;
314-5 Shimo-Kanzo;
Iwata;
Shizuoka 438-0193;
Japan;