An approach to image localized and propagating surface plasmon (SP) modes is introduced. It is shown that scanning tunneling microscope (STM)-electroluminescence, the radiative decay of SPs induced by inelastically tunneling electrons, observed in Fourier space yields distinct features that reflect the degree of delocalization and spatial distribution of SP modes. The propagating SP is isolated from the localized mode by way of this Fourier space imaging approach. Furthermore, a cylindrically symmetric spatial interference pattern is obtained when the STM-induced plasmon is created within a circular “corral” boundary condition.
REFERENCES
1.
M.
Quinten
, A.
Leitner
, J. R.
Krenn
, and F. R.
Aussenegg
, Opt. Lett.
23
, 1331
(1998
).2.
M. L.
Brongersma
, J. W.
Hartman
, and H. A.
Atwater
, Phys. Rev. B
62
, R16356
(2000
).3.
S. I.
Bozhevolnyi
, J.
Erland
, K.
Leosson
, P. M. W.
Skovgaard
, and J. M.
Hvam
, Phys. Rev. Lett.
86
, 3008
(2001
).4.
J.-C.
Weeber
, J. R.
Krenn
, A.
Dereux
, B.
Lamprecht
, Y.
Lacroute
, and J.-P.
Goudonnet
, Phys. Rev. B
64
, 045411
(2001
).5.
Y.-H.
Liau
, S.
Egusa
, and N. F.
Scherer
, Opt. Lett.
27
, 857
(2002
).6.
D. J.
Bergman
and M. I.
Stockman
, Phys. Rev. Lett.
90
, 027402
(2003
).7.
H. Raether, Surface Plasmons (Springer, Berlin, 1988).
8.
K.
Klar
, M.
Perner
, S.
Grosse
, G.
von Plessen
, W.
Spirkl
, and J.
Feldmann
, Phys. Rev. Lett.
80
, 4249
(1998
).9.
S. A.
Maier
, P. G.
Kik
, and H. A.
Atwater
, Appl. Phys. Lett.
81
, 1714
(2002
).10.
D.
Peyrade
, R.
Quidant
, J. C.
Weeber
, A.
Dereux
, G.
Leveque
, C.
Girard
, and Y.
Chen
, Europhys. Lett.
56
, 517
(2001
).11.
C.
Chicanne
, T.
David
, R.
Quidant
, J. C.
Weeber
, Y.
Lacroute
, E.
Bourillot
, A.
Dereux
, G.
Colas des Francs
, and C.
Girard
, Phys. Rev. Lett.
88
, 097402
(2002
).12.
J. H.
Coombs
, J. K.
Gimzewski
, J. K.
Reihl
, J. K.
Sass
, and R. R.
Schlitter
, J. Microsc.
152
, 325
(1988
).13.
14.
B. N. J.
Persson
and A.
Baratoff
, Phys. Rev. Lett.
68
, 3224
(1992
).15.
T.
Kume
, N.
Nakagawa
, S.
Hayashi
, and K.
Yamamoto
, Solid State Commun.
93
, 171
(1995
).16.
Y.
Uehara
, Y.
Kimura
, S.
Ushioda
, and K.
Takeuchi
, Jpn. J. Appl. Phys., Part 1
31
, 2465
(1992
).17.
It was verified that these patterns were free of optical artifacts by inserting an achromat lens in the collimated beam path and obtaining an image identical to a known object (i.e., sample) when the CCD is placed at the image plane of the lens. Similarly, the object could be faithfully reproduced by Fourier transformation when the CCD was at the Fourier plane, with or without the lens.
18.
T. R.
Jensen
, M. D.
Malinsky
, C. L.
Haynes
, and R. P.
Van Duyne
, J. Phys. Chem. B
104
, 10549
(2000
).19.
J. W. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw–Hill, New York, 1996).
20.
P.
Dawson
, B. A. F.
Puygranier
, and J.-P.
Goudonnet
, Phys. Rev. B
63
, 205410
(2001
).21.
E. D. Palik, Handbook of Optical Constants of Solids (Academic, San Diego, 1998).
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