論文

査読有り
2016年11月

Propagation length of mid-infrared surface plasmon polaritons on gold: Impact of morphology change by thermal annealing

JOURNAL OF APPLIED PHYSICS
  • Hiramatsu, Nobuyoshi
  • ,
  • Kusa, Fumiya
  • ,
  • Imasaka, Kotaro
  • ,
  • Morichika, Ikki
  • ,
  • Takegami, Akinobu
  • ,
  • Ashihara, Satoshi

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17
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/1.4966934
出版者・発行元
AMER INST PHYSICS

We studied the propagation length of surface plasmon polaritons (SPPs) at the gold/air interface in the mid-infrared range. We showed that SPPs propagate for a distance of about or above 10mm at a wavelength of 10.6 mu m, in good agreement with the value predicted from the dielectric constant of polycrystalline gold. We also demonstrated that a simple treatment of thermal annealing led to noticeable elongation of SPP propagation length, accompanied by increased grain size and decreased surface roughness. Quantitative evaluation of SPP propagation length, in correlation with material's morphology, is important in designing plasmonic devices and beneficial for understanding the mechanisms of SPP's losses that underlie electric-field enhancement. Published by AIP Publishing.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1063/1.4966934
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000388095800003&DestApp=WOS_CPL