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Proceedings Paper

Integrated single photon sources with colloidal semiconductor nanocrystals (Conference Presentation)
Author(s): Alberto Bramati; Maxime Joos; Chengjie Ding; Stefano Pierini; Quentin C. Glorieux

Paper Abstract

Core/shell colloidal semiconductor nanocrystals are very efficient room temperature single photon emitters. In particular, in asymmetric core/shell nanoparticles (dots-in rods) with a spherical CdSe core surrounded by a rod-like CdS shell, blinking effects, multi-excitonic emission and polarization of the emitted photons can be independently controlled by tuning the shell dimensions [1]. This allows an unprecedented capability in radiative channels engineering, making dot-in-rods “state of the art” blinking-free sources of polarized single photons on-demand. In this talk I will discuss our recent results and the different strategies we are pursuing to develop hybrid photonic devices by coupling single nanocrystals with photonic structures such as deep parabolic mirrors [2], liquid crystals [3], semiconductor nanowires [4] and tapered nanofibers. In particular the deposition of a single emitter on a nanofiber and the observation of single photon statistics through the guided mode of the fiber will be reported. Finally I will show how this hybrid system is a very promising playground for novel chiral optics experiments, including a spin-orbit coupling effect for light [5]. [1] F. Pisanello, G. Leménager, L. Martiradonna, L. Carbone, S. Vezzoli, P. Desfonds, P.D. Cozzoli, J.P. Hermier, E. Giacobino, R. Cingolani, M. DeVittorio & A. Bramati, Non-blinking single photon generation with anisotropic colloidal nanocrystals : toward Room-temperature efficient colloidal quantum sources, Advanced Materials, 25, 1974 (2013) [2] V. Salakhutdinov, M. Sondermann, L. Carbone, E. Giacobino, A. Bramati, G. Leuchs, Optical trapping of nanoparticles by full solid-angle focusing , Optica, 3, 1181 (2016) [3] L. Pelliser, M. Manceau, C. Lethiec, D. Coursault, S. Vezzoli, G. Leménager, L. Coolen, M. DeVittorio, F. Pisanello, L. Carbone, A. Maître, A. Bramati, E. Lacaze, Alignement of Rod-Shaped Single Photon Emitters driven by Line Defects in Liquid Crystals, Adv. Funct. Mat. 25, 1719 (2015) [4] W. Geng, M. Manceau, N. Rahbany, V. Sallet, M. De Vittorio, L. Carbone, Q. Glorieux, A. Bramati, C. Couteau, Localised excitation of a single photon source by a nanowaveguide, Scientific Reports 6, 19721 (2016) [5] M. Joos, C. Ding, V. Loo, G. Blanquer, E. Giacobino, A. Bramati, V. Krachmalnikoff and Q. Glorieux, Polarization Control of Linear Dipole radiation using an Optical Nanofiber, Phys. Rev. Applied, 9, 064035 (2018)

Paper Details

Date Published: 10 September 2019
Proc. SPIE 11091, Quantum Nanophotonic Materials, Devices, and Systems 2019, 110910H (10 September 2019);
Show Author Affiliations
Alberto Bramati, Lab. Kastler Brossel, Sorbonne Univ. (France)
Maxime Joos, Lab. Kastler Brossel (France)
Chengjie Ding, Lab. Kastler Brossel (France)
Stefano Pierini, Lab. Kastler Brossel (France)
Quentin C. Glorieux, Lab. Kastler Brossel (France)

Published in SPIE Proceedings Vol. 11091:
Quantum Nanophotonic Materials, Devices, and Systems 2019
Cesare Soci; Matthew T. Sheldon; Mario Agio, Editor(s)

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