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Hybrid nanoantennas for directional emission enhancement

Rusak, Evgenia; Staude, Isabelle; Decker, Manuel; Sautter, Jürgen; Miroshnichenko, Andrey E.; Powell, David A.; Neshev, Dragomir N.; Kivshar, Yuri S.


Plasmonic and dielectric nanoparticles offer complementary strengths regarding their use as optical antenna elements. While plasmonic nanoparticles are well-known to provide strong decay rate enhancement for localized emitters, all-dielectric nanoparticles can enable high directivity combined with low losses. Here, we suggest a hybrid metal-dielectric nanoantenna consisting of a gold nanorod and a silicon nanodisk, which combines all these advantages. Our numerical analysis reveals a giant...[Show more]

CollectionsANU Research Publications
Date published: 2014-12-04
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4903219


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