[22p-B204-1~14] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[22p-B204-13] Time-resolved phase imaging of femtosecond laser-induced air plasma using interferometer with high spatial resolution

〇(M2)WATARU KIMURA¹, Shotaro Kawano¹, Ryohei Yamada¹, Haruyuki Sakurai¹, Kuniaki Konishi¹, Norikatsu Mio¹ (1.The Univ. of Tokyo)

Keywords:

air plasma,phase imaging

Recently, it has been suggested that femtosecond laser-induced air plasma has spatially complex behavior, and high spatial resolution is required for this experimental observation. In this study, time-resolved complex transmission phase images of femtosecond laser-induced air plasma were acquired by using pump-probe Nomarski interferometer with theoretically 0.8 um spatial resolution.