Presentation Information

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[10p-E201-2]Visualization of Topological Edge Modes Using Femtosecond Time-resolved PEEM

〇(M1)Ryosuke Fujioka¹, Atsushi Kubo¹, Keiki Fukumoto² (1.Univ. of Tsukuba, 2.KEK)

Keywords:

Surface Plasmon,Plasmonic Crystals,Photoelectron Emission Microscopy

Using femtosecond time-resolved photoemission spectroscopy, we performed time- and space-resolved observations of photoemission from Au triangular lattice plasmonic crystals (PLCs) with various lattice constants. We report on the visualization of forced oscillations induced by excitation light of surface plasmons and the natural oscillations of the bulk and edge regions, respectively, based on the results of photoemission autocorrelation measurements for these regions.

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