Ultrafast time-resolved absorption spectroscopy of dolmen-type Au-nanostructures

Shohei Hamada; Hiroumi Matsui; Atsushi Ono; Wataru Inami; Yoshimasa Kawata; Masayuki Yoshizawa; Atsushi Sugita

Presentation information

Oral presentation

3 Optics and Photonics » 3.12 Nanoscale optical science and near-field optics

[10a-W621-1~13] 3.12 Nanoscale optical science and near-field optics

Sun. Mar 10, 2019 9:00 AM - 12:30 PM W621 (W621)

Kosei Ueno(Hokkaido Univ.), Toshiharu Saiki(Keio Univ.)

9:45 AM - 10:00 AM

[10a-W621-4] Ultrafast time-resolved absorption spectroscopy of dolmen-type Au-nanostructures

〇Shohei Hamada¹, Hiroumi Matsui², Atsushi Ono¹, Wataru Inami¹, Yoshimasa Kawata¹, Masayuki Yoshizawa², Atsushi Sugita¹ (1.Shizuoka Univ., 2.Tohoku Univ.)

Keywords:plasmonics

Ultrafast time-resolved absorption spectroscopy was studied for dolmen-type Au-nanostructures. The dolmen-type nanostructures are characterized with two absorption peaks due to different coordinate plasmon modes. Our experimental results demonstrated that both of the absorptions were red-shifted even though only one of the mode was pumped.