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Near-IR vibrational dynamics of periodic gold single and pair nanocuboids

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Title: Near-IR vibrational dynamics of periodic gold single and pair nanocuboids
Authors: Wang, Li Browse this author
Nishijima, Yoshiaki Browse this author
Ueno, Kosei Browse this author
Misawa, Hiroaki Browse this author →KAKEN DB
Tamai, Naoto Browse this author
Keywords: finite difference time-domain analysis
infrared spectra
nanostructured materials
Issue Date: 3-Aug-2009
Publisher: American Institute of Physics
Journal Title: Applied Physics Letters
Volume: 95
Issue: 5
Start Page: 053116
Publisher DOI: 10.1063/1.3202403
Abstract: We examined vibrational dynamics of periodic gold single and pair nanocuboids with 9 nm separation at 400 nm excitation by near-IR transient absorption spectroscopy. The similar oscillation periods of coherent phonon vibration (77±1 ps) were observed for both nanocuboids while the damping of the pair was faster than that of the single. From the analysis of bleaching peak shift and finite-difference time-domain calculation, the lattice change in coherent phonon vibration was estimated to be ±1% for a quasiextensional and ±3% for an quasibreathing modes of a single nanocuboid. © 2009 American Institute of Physics.
Rights: Copyright © 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
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

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