Controlling Spontaneous Emission with Plasmonic Optical Patch Antennas

Abstract : We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk separated from a planar gold layer by a few tens of nanometers thick dielectric layer. The emitters are shown to radiate through the entire patch antenna in a highly directional and vertical radiation pattern. Strong acceleration of spontaneous emission is observed, depending on the antenna geometry. Considering the double dipole structure of the emitters, this corresponds to a Purcell factor up to 80 for dipoles perpendicular to the disk.
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Article dans une revue
Nano Letters, American Chemical Society, 2013, 13 (4), pp.1516-1521. 〈10.1021/nl3046602〉
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https://hal-iogs.archives-ouvertes.fr/hal-00821543
Contributeur : Jean-Jacques Greffet <>
Soumis le : vendredi 10 mai 2013 - 16:47:36
Dernière modification le : jeudi 11 janvier 2018 - 06:26:43

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Cherif Belacel, Benjamin Habert, Florian Bigourdan, François Marquier, Jean-Paul Hugonin, et al.. Controlling Spontaneous Emission with Plasmonic Optical Patch Antennas. Nano Letters, American Chemical Society, 2013, 13 (4), pp.1516-1521. 〈10.1021/nl3046602〉. 〈hal-00821543〉

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