Abstract
The propagation of surface plasmon polaritons guided along Au metal waveguides fabricated by electron-beam lithography is experimentally investigated using simultaneous near-field excitation and detection of plasmon-polariton modes localized at the air/Au interface. The directly measured propagation characteristics of surface plasmon-polaritons agree well with simulation results obtained using full-vector calculations and the analytic dispersion of asymmetric plasmonic waveguides for thin Au films. Our results demonstrate that near-field excitation/detection schemes are well suited for direct imaging and characterization of propagating surface plasmon-fields bound to thin-film metal layers, and can be used for fast and reliable characterization of plasmonic waveguide elements and nanodevices.
| Original language | English |
|---|---|
| Article number | 243118 |
| Journal | Applied Physics Letters |
| Volume | 94 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 2009 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Near-field excitation and near-field detection of propagating surface plasmon polaritons on Au waveguide structures. / Dallapiccola, R.; Dubois, C.; Gopinath, A.; Stellacci, F.; Dal Negro, L.
In: Applied Physics Letters, Vol. 94, No. 24, 243118, 2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Near-field excitation and near-field detection of propagating surface plasmon polaritons on Au waveguide structures
AU - Dallapiccola, R.
AU - Dubois, C.
AU - Gopinath, A.
AU - Stellacci, F.
AU - Dal Negro, L.
PY - 2009
Y1 - 2009
N2 - The propagation of surface plasmon polaritons guided along Au metal waveguides fabricated by electron-beam lithography is experimentally investigated using simultaneous near-field excitation and detection of plasmon-polariton modes localized at the air/Au interface. The directly measured propagation characteristics of surface plasmon-polaritons agree well with simulation results obtained using full-vector calculations and the analytic dispersion of asymmetric plasmonic waveguides for thin Au films. Our results demonstrate that near-field excitation/detection schemes are well suited for direct imaging and characterization of propagating surface plasmon-fields bound to thin-film metal layers, and can be used for fast and reliable characterization of plasmonic waveguide elements and nanodevices.
AB - The propagation of surface plasmon polaritons guided along Au metal waveguides fabricated by electron-beam lithography is experimentally investigated using simultaneous near-field excitation and detection of plasmon-polariton modes localized at the air/Au interface. The directly measured propagation characteristics of surface plasmon-polaritons agree well with simulation results obtained using full-vector calculations and the analytic dispersion of asymmetric plasmonic waveguides for thin Au films. Our results demonstrate that near-field excitation/detection schemes are well suited for direct imaging and characterization of propagating surface plasmon-fields bound to thin-film metal layers, and can be used for fast and reliable characterization of plasmonic waveguide elements and nanodevices.
UR - http://www.scopus.com/inward/record.url?scp=67649214248&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649214248&partnerID=8YFLogxK
U2 - 10.1063/1.3152291
DO - 10.1063/1.3152291
M3 - Article
AN - SCOPUS:67649214248
VL - 94
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 24
M1 - 243118
ER -