[21p-S622-1~20] 3.6 Ultrashort-pulse and high-intensity lasers

[21p-S622-6] Attosecond absorption spectroscopy based on quantum interference for measuring petaherz electronic polarization in semiconductor

〇Katsuya Oguri¹, Hiroki Mashiko¹, Tomohiko Yamaguchi^1,2, Akira Suda², Hideki Gotoh¹ (1.NTT Basic Research Labs., 2.Tokyo Univ. of Science)

Keywords:Attosecond physics,petaherz,ultrafast absorption spectroscopy

Realization of ultrafast device with operational frequency on the order of petaherz (10¹⁵ Hz) will be a next frontier in the field of attosecond technology and science. For this aim, it is required to develop a measurement scheme for electronic responses induced by a lightwave in solid state system with attosecond time resolution. In this paper, we propose a scheme for measuring petaherz electronic polarization in semiconductor with attosecond transient absorption spectroscopy.