Direct measurement of dispersion relation for surface plasmon-polaritons on silver nanoantennas

Hikaru Saito, Hiroki Kurata

研究成果: Contribution to journalLetter

8 引用 (Scopus)

抜粋

We investigated the degree to which the dispersion relation of surface plasmon-polaritons excited on silver nanoantennas depends on length. To accomplish this, dispersion measurements for individual silver nanoantennas with lengths from 220 nm to 2.5 μm were performed using angle-resolved electron energy-loss spectroscopy (AREELS) and spatially resolved EELS (SREELS). AREELS enabled measurements of the dispersion relation extending into the high-energy region of 2.6 eV for a 2.5-μm-long silver nanoantenna, without the need to excite Fabry–Perot-type resonances. Our experiments showed that the dispersion relation of silver nanoantennas that have the same diameter is independent of their individual lengths.

元の言語英語
ページ(範囲)155-159
ページ数5
ジャーナルMicroscopy
63
発行部数2
DOI
出版物ステータス出版済み - 1 1 2014
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Instrumentation
  • Radiology Nuclear Medicine and imaging

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