HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Research Institute for Electronic Science >
Peer-reviewed Journal Articles, etc >

Direct imaging of the near field and dynamics of surface plasmon resonance on gold nanostructures using photoemission electron microscopy

This item is licensed under:Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported

Files in This Item:
lsa201374a.pdf1.64 MBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Direct imaging of the near field and dynamics of surface plasmon resonance on gold nanostructures using photoemission electron microscopy
Authors: Sun, Quan Browse this author
Ueno, Kosei Browse this author →KAKEN DB
Yu, Han Browse this author
Kubo, Atsushi Browse this author
Matsuo, Yasutaka Browse this author →KAKEN DB
Misawa, Hiroaki Browse this author →KAKEN DB
Keywords: femtosecond laser
local field enhancement
near-field imaging
photoemission electron microscopy
surface plasmon resonance
Issue Date: Dec-2013
Publisher: Nature Publishing Group
Journal Title: Light : science & applications
Volume: 2
Start Page: e118-1
End Page: e118-8
Publisher DOI: 10.1038/lsa.2013.74
Abstract: Localized surface plasmon resonance (LSPR) can be supported by metallic nanoparticles and engineered nanostructures. An understanding of the spatially resolved near-field properties and dynamics of LSPR is important, but remains experimentally challenging. We report experimental studies toward this aim using photoemission electron microscopy (PEEM) with high spatial resolution of sub-10 nm. Various engineered gold nanostructure arrays (such as rods, nanodisk-like particles and dimers) are investigated via PEEM using near-infrared (NIR) femtosecond laser pulses as the excitation source. When the LSPR wavelengths overlap the spectrum of the femtosecond pulses, the LSPR is efficiently excited and promotes multiphoton photoemission, which is correlated with the local intensity of the metallic nanoparticles in the near field. Thus, the local field distribution of the LSPR on different Au nanostructures can be directly explored and discussed using the PEEM images. In addition, the dynamics of the LSPR is studied by combining interferometric time-resolved pump-probe technique and PEEM. Detailed information on the oscillation and dephasing of the LSPR field can be obtained. The results identify PEEM as a powerful tool for accessing the near-field mapping and dynamic properties of plasmonic nanostructures.
Type: article
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 三澤 弘明

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University