Sökning: onr:"swepub:oai:research.chalmers.se:a26afab6-cb28-4f69-bfc7-1c20a36c6d2b" >
Fano interference i...
Fano interference in supported gold nanosandwiches with weakly coupled nanodisks
-
- Mendoza-Galvan, A. (författare)
- Centro de Investigacion y de Estudios Avanzados (CINVESTAV),Centro de Investigacion y de Estudios Avanzados Centro de Investigacion y de Estudios Avanzados (CINVESTAV),Cinvestav-IPN, Unidad Querétaro, Querétaro, Mexico
-
- Järrendahl, Kenneth (författare)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
- Dmitriev, Alexander, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden
-
visa fler...
-
- Pakizeh, Tavakol, 1977 (författare)
- K. N. Toosi University of Technology,Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran
-
- Käll, Mikael, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden
-
- Arwin, Hans, 1950- (författare)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
visa färre...
-
(creator_code:org_t)
- 2012
- 2012
- Engelska.
-
Ingår i: Optics Express. - 1094-4087 .- 1094-4087. ; 20:28, s. 29646-29658
- Relaterad länk:
-
http://publications.... (primary) (free)
-
visa fler...
-
https://liu.diva-por... (primary) (Raw object)
-
https://doi.org/10.1...
-
https://research.cha...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- We studied the far-field optical response of supported gold-silica-gold nanosandwiches using spectroscopic ellipsometry, reflectance and transmittance measurements. Although transmittance data clearly shows that the gold nanodisks in the sandwich structure interact very weakly, oblique reflectance spectra of s- and p-polarized light show clearly asymmetric line-shapes of the Fano type. However, all experimental results are very well described by modeling the gold nanodisks as oblate spheroids and by employing a 2 x 2 scattering matrix formulation of the Fresnel coefficients provided by an island film theory. In particular, the Fano asymmetry can be explained in terms of interference between the scattered waves from the decoupled nanodisks in the spectral range limited by their respective plasmon resonances. We also show that the reflectance and ellipsometry spectra can be described by a three-layer system with uniaxial effective dielectric functions.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- films
- plasmons
- asymmetry
- resonances
- nanostructures
- optical-properties
- shape
- metamaterials
- TECHNOLOGY
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas