We report a method that enables the excitation of localized surface plasmons (LSPs) in a gold nanodisk array by placing each nanodisk on top of a GaN nanorod. When the rod length was much longer than the plasmon penetration depth inside the nanorod, the plasmonic field was found to be localized, and coupling between neighboring gold nanodisks was eliminated. The interaction between LSPs and acoustic vibrations in gold nanodisks was then investigated. Owing to the strong localization of the plasmonic field, weak, higher-order vibrational modes of gold nanodisk could be optically observed. Furthermore, such an LSP-based acoustic sensor could be operated at any angle of incident light. Our study not only provides an approach to excite LSPs in high-density metallic arrays, but also opens one of the possible solutions for the development of highly sensitive sub-terahertz hypersonic sensors with high angle tolerance of incident light.
References
1.
J.
Heo
, W.
Guo
, and P.
Bhattacharya
, Appl. Phys. Lett.
98
, 021110
(2011
).2.
X.
Duan
, Y.
Huang
, Y.
Cui
, J.
Wang
, and C. M.
Lieber
, Nature
409
, 66
–69
(2001
).3.
A. V.
Kabashin
, P.
Evans
, S.
Pastkovsky
, W.
Hendren
, G. A.
Wurtz
, R.
Atkinson
, R.
Pollard
, V. A.
Podolskiy
, and A. V.
Zayats
, Nat. Mater.
8
, 867
–871
(2009
).4.
S.
Cuenot
, C.
Fretigny
, S. D.
Champagne
, and B.
Nysten
, Phys. Rev. B
69
, 165410
(2004
).5.
P.
Holt-Hindle
, S.
Nigro
, M.
Asmussen
, and A.
Chen
, Electrochem. Commun.
10
, 1438
(2008
).6.
K.-H.
Lin
, C.-M.
Lai
, C.-C.
Pan
, J.-I.
Chyi
, J.-W.
Shi
, S.-Z.
Sun
, C.-F.
Chang
, and C.-K.
Sun
, Nat. Nanotrchnol.
2
, 704
–708
(2007
).7.
K.-H.
Lin
, C.-T.
Yu
, S.-Z.
Sun
, H.-P.
Chen
, C.-C.
Pan
, J.-I.
Chyi
, S.-W.
Huang
, P.-C.
Li
, and C.-K.
Sun
, Appl. Phys. Lett.
89
, 043106
(2006
).8.
P.-A.
Mante
, C.-C.
Chen
, Y.-C.
Wen
, H.-Y.
Chen
, S.-C.
Yang
, Y.-R.
Huang
, I.-J.
Chen
, Y.-W.
Chen
, V.
Gusev
, M.-J.
Chen
, J.-L.
Kuo
, J.-K.
Sheu
, and C.-K.
Sun
, Sci. Rep.
4
, 6249
(2014
).9.
O. B.
Wright
and V. E.
Gusev
, Appl. Phys. Lett.
66
, 1190
–1192
(1995
).10.
S.
Wu
, P.
Geiser
, J.
Jun
, J.
Karpinski
, and R.
Sobolewski
, Phys. Rev. B
76
, 085210
(2007
).11.
Y.-H.
Chen
, Y.-C.
Wen
, W.-R.
Liu
, W.-F.
Hsieh
, and C.-K.
Sun
, Chinese J. Phys.
49
, 201
–208
(2011
).12.
C.
Thomsen
, H. T.
Grahn
, H. J.
Maris
, and J.
Tauc
, Phys. Rev. B
34
, 4129
–4138
(1986
).13.
H.-N.
Lin
, R. J.
Stoner
, H. J.
Maris
, and J.
Tauc
, J. Appl. Phys.
69
, 3816
–3822
(1991
).14.
C.-K.
Sun
, J.-C.
Liang
, and X.-Y.
Yu
, Phys. Rev. Lett.
84
, 179
–182
(2000
).15.
C.-K.
Sun
, J.-C.
Liang
, C. J.
Stanton
, A.
Abare
, L.
Coldren
, and S. P.
DenBaars
, Appl. Phys. Lett.
75
, 1249
–1251
(1999
).16.
G.-W.
Chern
, K.-H.
Lin
, and C.-K.
Sun
, J. Appl. Phys.
95
, 1114
–1121
(2004
).17.
C.-T.
Yu
, K.-H.
Lin
, C.-L.
Hsieh
, C.-C.
Pan
, J.-I.
Chyi
, and C.-K.
Sun
, Appl. Phys. Lett.
87
, 093114
(2005
).18.
K.-H.
Lin
, C.-T.
Yu
, Y.-C.
Wen
, and C.-K.
Sun
, Appl. Phys. Lett.
86
, 093110
(2005
).19.
I.-J.
Chen
, P.-A.
Mante
, C.-K.
Chang
, S.-C.
Yang
, H.-Y.
Chen
, Y.-R.
Huang
, L.-C.
Chen
, K.-H.
Chen
, V.
Gusev
, and C.-K.
Sun
, Nano Lett.
14
, 1317
–1323
(2014
).20.
P.-A.
Mante
, A.
Devos
, and A.
Le Louarn
, Phys. Rev. B
81
, 113305
(2010
).21.
Y.-C.
Wen
, J.-H.
Sun
, C.
Dais
, D.
Grützmacher
, T.-T.
Wu
, J.-W.
Shi
, and C.-K.
Sun
, Appl. Phys. Lett.
96
, 123113
(2010
).22.
K.-H.
Lin
, G.-W.
Chern
, C.-T.
Yu
, T.-M.
Liu
, C.-C.
Pan
, G.-T.
Chen
, J.-I.
Chyi
, S.-W.
Huang
, P.-C.
Li
, and C.-K.
Sun
, IEEE Trans. Ultrason. Ferroelectr. Freq. Control.
52
, 1404
–1414
(2005
).23.
J.
Wang
, J.
Wu
, and C.
Guo
, Opt. Lett.
32
, 719
–721
(2007
).24.
H.-P.
Chen
, Y.-C.
Wen
, Y.-H.
Chen
, C.-H.
Tsai
, K.-L.
Lee
, P.-K.
Wei
, J.-K.
Sheu
, and C.-K.
Sun
, Appl. Phys. Lett.
97
, 201102
(2010
).25.
C.
Bruggemann
, J.
Jager
, B. A.
Glavin
, V. I.
Belotelov
, I. A.
Akimov
, S.
Kasture
, A. V.
Gopal
, A. S.
Vengurlekar
, D. R.
Yakovlev
, A. V.
Akimov
, and M.
Bayer
, Appl. Phys. Lett.
101
, 243117
(2012
).26.
S.-C.
Yang
, H.-P.
Chen
, H.-H.
Hsiao
, P.-K.
Wei
, H.-C.
Chang
, and C.-K.
Sun
, Opt. Express
20
, 16186
(2012
).27.
C.
Bruggemann
, A. V.
Akimov
, B. A.
Glavin
, V. I.
Belotelov
, I. A.
Akimov
, J.
Jager
, S.
Kasture
, A. V.
Gopal
, A. S.
Vengurlekar
, D. R.
Yakovlev
, A. J.
Kent
, and M.
Bayer
, Phys. Rev. B.
86
, 121401
(2012
).28.
P.-A.
Mante
, H.-Y.
Chen
, M.-H.
Lin
, Y.-C.
Wen
, S.
Gwo
, and C.-K.
Sun
, Appl. Phys. Lett.
101
, 101903
(2012
).29.
T. R.
Gururaja
, W. A.
Schulze
, L. E.
Cross
, R. E.
Newnham
, B. A.
Auld
, and Y. J.
Wang
, IEEE Trans. Sonics Ultrason.
32
, 481
(1985
).30.
K. C.
Cheng
, H. L. W.
Chan
, C. L.
Choy
, Q. R.
Yin
, H. S.
Luo
, and Z. W.
Yin
, IEEE Trans. Ultrason. Ferroelectr. Freq. Control
50
, 1177
(2003
).31.
K.-L.
Lee
and P.-K.
Wei
, Appl. Phys. Lett.
99
, 083108
(2011
).32.
V. A.
Markel
, J. Mod. Opt.
40
, 2281
(1993
).33.
L. L.
Zhao
, K. L.
Kelly
, and G. C.
Schatz
, J. Phys. Chem. B
107
, 7343
(2003
).34.
C. L.
Haynes
, A. D.
McFarland
, L. L.
Zhao
, R. P.
Van Duyne
, G. C.
Schatz
, L.
Gunnarsson
, J.
Prikulis
, B.
Kasemo
, and M. J.
Kall
, Phys. Chem. B
107
, 7337
(2003
).35.
M. D.
Malinsky
, K. L.
Kelly
, G. C.
Schatz
, and R. P.
Van Duyne
, J. Phys. Chem. B
105
, 2343
(2001
).36.
S. A.
Maier
, Plasmonics: Fundamentals and Applications
(Springer
, New York
, 2007
), p. 29
.37.
C.-M.
Wang
, Y.-C.
Chang
, M.-W.
Tsai
, Y.-H.
Ye
, C.-Y.
Chen
, Y.-W.
Jiang
, Y.-T.
Chang
, S.-C.
Lee
, and D.-P.
Tsai
, Opt. Express
15
, 14673
(2007
).38.
J.
Homola
, S. S.
Yee
, and G.
Gauglitz
, Sens. Actuators, B
54
, 3
(1999
).39.
H.-P.
Chen
, Y.-C.
Wu
, P. A.
Mante
, S.-J.
Tu
, J.-K.
Sheu
, and C.-K.
Sun
, Opt. Express
20
, 16611
(2012
).40.
P.-A.
Mante
, Y.-C.
Wu
, C.-Y.
Ho
, L.-W.
Tu
, and C.-K.
Sun
, Nano Lett.
13
, 1139
(2013
).41.
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