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Dendritic optical antennas: scattering properties and fluorescence enhancement.


ABSTRACT: With the development of nanotechnologies, researchers have brought the concept of antenna to the optical regime for manipulation of nano-scaled light matter interactions. Most optical nanoantennas optimize optical function, but are not electrically connected. In order to realize functions that require electrical addressing, optical nanoantennas that are electrically continuous are desirable. In this article, we study the optical response of a type of electrically connected nanoantennas, which we propose to call "dendritic" antennas. While they are connected, they follow similar antenna hybridization trends to unconnected plasmon phased array antennas. The optical resonances supported by this type of nanoantennas are mapped both experimentally and theoretically to unravel their optical response. Photoluminescence measurements indicate a potential Purcell enhancement of more than a factor of 58.

SUBMITTER: Guo K 

PROVIDER: S-EPMC5524762 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Dendritic optical antennas: scattering properties and fluorescence enhancement.

Guo Ke K   Antoncecchi Alessandro A   Zheng Xuezhi X   Sallam Mai M   Soliman Ezzeldin A EA   Vandenbosch Guy A E GAE   Moshchalkov Victor V VV   Koenderink A Femius AF  

Scientific reports 20170724 1


With the development of nanotechnologies, researchers have brought the concept of antenna to the optical regime for manipulation of nano-scaled light matter interactions. Most optical nanoantennas optimize optical function, but are not electrically connected. In order to realize functions that require electrical addressing, optical nanoantennas that are electrically continuous are desirable. In this article, we study the optical response of a type of electrically connected nanoantennas, which we  ...[more]

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