Direct imaging of the near field and dynamics of surface plasmon
resonance on gold nanostructures using photoemission electron
Quan Sun1,2, Kosei Ueno1,3, Han Yu1, Atsushi Kubo4, Yasutaka Matsuo1, Hiroaki
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
Creative Research Institution, Hokkaido University, Sapporo 001-0021, Japan
PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan
Institute of Physics, University of Tsukuba, Tsukuba 305-8571, Japan
*To whom correspondence should be addressed: Prof. Hiroaki Misawa
E-mail: [email protected], TEL: +(81)-11-706-9358, FAX: +(81)-11-706-9359.
Figure S1. Demonstration of the measurement of the spatial resolution from one PEEM
Figure S2. Side view SEM image of the annealed Au nanoparticles.
Movie01. (In a separate .mov file) A typical time-resolved movie recorded for the
annealed nanoparticle sample.
Movie02. (In a separate .mov file) A movie recording the out-of-phase oscillation of the
hotspots from two nanoparticle arrays.
Figure S1
Figure S1. The spatial resolution of PEEM is usually determined by measuring the distance
between the 16% and 84% intensity points of a cross section of small features. As an example
here, it is determined to be 14.4 nm measured from one of the hot spots.
Figure S2
Figure S2. Side view SEM image (view angle is 75° from the surface normal) of the annealed Au
nanoparticles. The shape of the nanoparticles is closer to nanodisk.

Figure S2.