Emission in a patch nanoantenna with single emitter (Conference Presentation)

Amit Raj Dhawan; Juan Uriel Esparza; Micheal Nasilowski; Chérif Belacel; Catherine Schwob; Laurent Coolen; Benoit Dubertret; Pascale Senellart; Agnès Maître

doi:10.1117/12.2254798

28 April 2017 Emission in a patch nanoantenna with single emitter (Conference Presentation)

Amit Raj Dhawan, Juan Uriel Esparza, Micheal Nasilowski, Chérif Belacel, Catherine Schwob, Laurent Coolen, Benoit Dubertret, Pascale Senellart, Agnès Maître

Author Affiliations +

Proceedings Volume 10111, Quantum Sensing and Nano Electronics and Photonics XIV; 101111N (2017) https://doi.org/10.1117/12.2254798
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Plasmonic nano-antennas provide broadband spontaneous emission control by confining light on highly sub-wavelength volumes. We realize a plasmonic patch antenna by positioning a emitter within a ultrathin slab of dielectric limited by an optically thick gold layer and a thin gold patch. A single CdSe/CdS colloidal quantum dot is deterministically located just in the center of the antenna by an original in situ optical lithography protocol [1]. Depending on the dimension of the patch antenna and the emitter orientation, different Purcell factors could be achieved leading to different optical properties. For moderate Purcell factors, patch nanoantennas are plasmonic directive single photon sources. For higher Purcell factors, the spontaneous emission acceleration makes the multiexciton radiative recombination more efficient than Auger non radiative recombination. Emission of photons due to multiexcitons recombination could be observe at very short time scale. Such antennas can be very efficiently excited. Such antenna appear to be extremely bright as their luminescence exceed by more than one order of magnitude the one of single nanocrystals. References: [1] Dousse, A. et al. Controlled light-matter coupling for a single quantum dot embedded in a pillar microcavity using far-field optical lithography. Phys. Rev. Lett. 101, 267404 (2008). [2] C. Belacel, B. Habert, F. Bigourdan, F. Marquier, J-P. Hugonin, S. Michaelis de Vasconcellos, X. Lafosse, L. Coolen, C. Schwob, C. Javaux, B. Dubertret, J-J. Greffet, P. Senellart, A. Maître, Controlling spontaneous emission with plasmonic optical patch antennas, Nanoletters 13 1516 (2013)

Conference Presentation

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Amit Raj Dhawan, Juan Uriel Esparza, Micheal Nasilowski, Chérif Belacel, Catherine Schwob, Laurent Coolen, Benoit Dubertret, Pascale Senellart, and Agnès Maître "Emission in a patch nanoantenna with single emitter (Conference Presentation)", Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 101111N (28 April 2017); https://doi.org/10.1117/12.2254798

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KEYWORDS

Antennas

Plasmonics

Nanoantennas

Gold

Optical lithography

Quantum dots

Dielectrics

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