The authors present their work in the preparation of nanoporous gold layers and their patterning with an original procedure preserving the porosity, to obtain the phenomenon of extraordinary transmission of light with a porous material. The design, fabrication, and characterization of nanoslit arrays made with bulk gold and nanoporous gold films are presented and their sensing performances are compared after coating with thiolated organic molecules. Thanks to a greatly enhanced surface-to-volume ratio, nanoporous gold reveals benefits for better reaction efficiency and detection sensitivity. Moreover, plasmonic properties in the near-IR range assure employment in plasmonic devices.

1.
H.
Raether
,
Surface Plasmons on Smooth and Rough Surfaces and on Gratings
(
Springer-Verlag
,
New York
,
1988
).
2.
B.
Liedberg
,
C.
Nylander
, and
I.
Lundstrom
,
Sens. Actuators
4
,
299
(
1983
).
3.
K. L.
Lee
,
K. L.
Wang
, and
P. K.
Wei
,
J. Biomed. Opt.
12
,
044023
(
2007
).
4.
G.
Ruffato
,
F.
Romanato
,
D.
Garoli
, and
S.
Cattarin
,
Opt. Express
19
,
13164
(
2011
).
5.
T. W.
Ebbesen
,
H. J.
Lezec
,
H. F.
Ghaemi
,
T.
Thio
, and
P. A.
Wolff
,
Nature
391
,
667
(
1998
).
6.
F. J.
Garcia-Vidal
,
L.
Martin-Moreno
, and
J. B.
Pendry
,
J. Opt. A, Pure Appl. Opt.
7
,
97
(
2005
).
7.
Y.
Pang
,
C.
Genet
, and
T. W.
Ebbesen
,
Opt. Commun.
280
,
10
(
2007
).
8.
T.
Ongarello
,
F.
Romanato
,
P.
Zilio
, and
M.
Massari
,
Opt. Express
19
,
9426
(
2011
).
9.
K. L.
Lee
,
K. L.
Wang
, and
P. K.
Wei
,
Plasmonics
3
,
119
(
2008
).
10.
A.
Karabchevsky
,
O.
Krasnykov
,
M.
Auslender
,
B.
Hadad
,
A.
Goldner
, and
I.
Abdulhalim
,
Plasmonics
4
,
281
(
2009
).
11.
J.
Erlebacher
,
M. J.
Aziz
,
A.
Karma
,
N.
Dimitrov
, and
K.
Sieradzki
,
Nature
410
,
450
(
2001
).
12.
M. C.
Dixon
,
T. A.
Daniel
,
M.
Hieda
,
D. M.
Smilgies
,
M. H. W.
Chan
, and
D. L.
Allara
,
Langmuir
23
,
2414
(
2007
).
13.
J.
Biener
,
G. W.
Nyce
,
A. M.
Hodge
,
M. M.
Biener
,
A.
Hamza
, and
S. A.
Maier
,
Adv. Mater.
20
,
1211
(
2008
).
14.
X.
Zhang
 et al.,
J. Mater. Chem.
22
,
8903
(
2012
).
15.
S.
Cattarin
,
D.
Kramer
,
A.
Lui
, and
M.
Musiani
,
J. Phys. Chem. C
111
,
12643
(
2007
).
16.
S.
Cattarin
,
D.
Kramer
,
A.
Lui
, and
M.
Musiani
,
Fuel Cells
9
,
209
(
2009
).
17.
E.
Rouya
,
S.
Cattarin
,
M. L.
Reed
,
R. G.
Kelly
, and
G.
Zangari
,
J. Electrochem. Soc.
159
,
K97
(
2012
).
18.
A. I.
Maaroof
,
A.
Gentle
,
G. B.
Smith
, and
M. B.
Cortie
,
J. Phys. D: Appl. Phys.
40
,
5675
(
2007
).
19.
A. I.
Maaroof
,
M. B.
Cortie
,
A.
Gentle
, and
G. B.
Smith
,
Physica B
394
,
167
(
2007
).
20.
G. B.
Smith
and
A. A.
Earp
,
Nanotechnology
21
,
015203
(
2010
).
You do not currently have access to this content.