High-Q resonance modes observed in a metallic nanocavity

Takemoto, R.; Ishihara, N.; Kurosawa, H. et al.

Applied physics letters, 2013, 103(19), 191104-1-191104-4

Permalink : https://hdl.handle.net/2115/54609

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アクセス権
open access
URI
https://hdl.handle.net/2115/54609
タイトル
High-Q resonance modes observed in a metallic nanocavity
著者
Takemoto, R. ; Ishihara, N. ; Kurosawa, H. ; Jahan, N. A. ; Asano, T. ; Liu, X. ; Nakajima, H. ; Kumano, H. ; Suemune, I.
著者名
Takemoto, R.
著者名
Ishihara, N.
著者名
Kurosawa, H.
著者名
Jahan, N. A.
著者名
Asano, T.
著者名
Liu, X.
著者名
Nakajima, H.
著者名
Kumano, H.
e-Rad_Researcher
00112178
著者名
Suemune, I.
言語
英語
発行日
2013-11-04
出版者
American Institute of Physics
収録物名
Applied physics letters
巻(号)
103(19)
ページ
191104-1-191104-4
抄録
Metallic nanocavities have been actively studied for realizing nanolasers with low threshold. Presence of resonance modes with high cavity Q values is the indication of low internal loss that leads to low threshold lasing. However, cavity Q values observed in metallic nanocavities below lasing threshold remain low at present on the order of 100 to 500. We study the possibility to realize higher resonance Q values with a metallic nanocavity. For probing purpose of cavity modes we propose to employ broad mid-gap-state optical emission of n-type GaAs. With this method we report the observation of a resonance mode with the high Q value of 3800 at room temperature with the metallic nanocavity. The cavity mode is identified as a whispering-gallery mode with finite-element- method simulation.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
権利情報
Copyright 2013 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. The following article appeared in Appl. Phys. Lett. 103, 191104 (2013) and may be found at http://dx.doi.org/10.1063/1.4828351.
PISSN
0003-6951
NCID
AA00543431
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1063/1.4828351