[17a-D215-1~10] 3.10 Photonic structures and phenomena (formerly 3.11)

[17a-D215-5] Ultra-fast nonlinear optical response using graphene on SiC

〇Junichi Fujikata¹, Tomoki Kusaka¹, Kazuhiko Seki², Wataru Nnorimatsu³, Takahiro Ito³, Tetsuro Katayama¹, Masao Nagase¹, Akihiro Furube¹ (1.Tokushima Univ., 2.AIST, 3.Nagoya Univ.)

Keywords:graphene, saturable absorption, Auger effect

Recently all-photonics information processing as well as photonics-electronics convergence system has attracted much attention with increasing communication network capacity by spreading IoT network. In this study, high-speed saturable absorption of a graphene layer grown on the SiC substrate was investigated by pump-probe spectroscopy. We also analyzed carrier dynamics in the graphene layer based on the ultra high-speed absorption change.