17:30 〜 17:45 ▲ [6p-A414-16] Autocorrelation measurement of ultrafast optical pulses using silicon p-i-n waveguides as two-photon absorption detector 〇Guangwei Cong1、Morifumi Ohno1、Yuriko Maegami1、Makoto Okano1、Koji Yamada1 (1.AIST)