Broadband enhancement and inhibition of single quantum dot emission in plasmonic nano-cavities operating at telecommunications wavelengths

David Elvira 1 Remy Braive 1 Grégoire Beaudoin 1 Isabelle Sagnes 1 Jean-Paul Hugonin 2 Izo Abram 1 Isabelle Robert-Philip 1 Philippe Lalanne 3 Alexios Beveratos 1
1 LPN - Laboratoire de photonique et de nanostructures
2 Laboratoire Charles Fabry / Naphel
LCF - Laboratoire Charles Fabry
3 lp2n-03,lp2n-13
LP2N - Laboratoire Photonique, Numérique et Nanosciences
Abstract : A plasmonic microcavity providing broadband control of spontaneous emission for large and sparse semiconductor quantum dots emitting at telecommunications wavelengths is proposed. By designing and fabricating such a cavity, we demonstrate a broadband Purcell effect with spontaneous emission enhancement over a broad spectral range of Dk ’ 20nm with a 3.9-fold maximum enhancement, as well as inhibition over Dk ’ 100 nm around 1.3 lm. The broadband feature relaxes the constraint on spectral matching between the dot emission and the cavity mode, favourable for implementing efficient non-classical light sources or nanoscale lasers.
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Applied Physics Letters, American Institute of Physics, 2013, 103, pp.061113. 〈10.1063/1.4818131〉
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David Elvira, Remy Braive, Grégoire Beaudoin, Isabelle Sagnes, Jean-Paul Hugonin, et al.. Broadband enhancement and inhibition of single quantum dot emission in plasmonic nano-cavities operating at telecommunications wavelengths. Applied Physics Letters, American Institute of Physics, 2013, 103, pp.061113. 〈10.1063/1.4818131〉. 〈hal-00859960〉

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