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Plasmonic laser antenna
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10.1063/1.2339286
/content/aip/journal/apl/89/9/10.1063/1.2339286
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/9/10.1063/1.2339286
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Plasmonic laser antenna: (a) nanorod design employed in this work and (b) bow tie design that would provide a stronger contrast between the intensity enhancement in the gap and the intensity enhancement at the ends of the antenna.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Scanning electron micrograph of the resonant optical antenna. (b) Numerical simulation of the total electric field intensity enhancement with respect to the incident intensity. The enhancement reaches values near the middle of the gap.

Image of FIG. 3.
FIG. 3.

(Color online) Experimental setup for measurement of near-field intensity distributions on plasmonic laser antennas. The instrument is a conventional -NSOM/AFM operated in noncontact mode. Topographic and optical near-field images are obtained simultaneously. The optical near-field image is obtained by monitoring the power output from the photodiode. Lock-in detection at the cantilever oscillation frequency is used to extract the component of the photodetector signal resulting from scattering by the AFM tip, which constitutes the optical near-field image.

Image of FIG. 4.
FIG. 4.

(Color online) (a) AFM topography and (b) -NSOM image of resonant optical antenna fabricated on one of the facets of a commercial diode laser operating at wavelength. (c) Line scan of the near-field distribution along the antenna axis

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/content/aip/journal/apl/89/9/10.1063/1.2339286
2006-08-31
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Plasmonic laser antenna
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/9/10.1063/1.2339286
10.1063/1.2339286
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