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arXiv 2020年

作者： Ge, Dandan Marguet, Sylvie Issa, Ali Jradi, Safi Nguyen, Tien Hoa Nahra, Mackrine Béal, Jéremie Deturche, Régis Chen, Hongshi Blaize, Sylvain Plain, Jérôme Fiorini, Céline Douillard, Ludovic Soppera, Olivier Dinh, Xuan Quyen Dang, Cuong Yang, Xuyong Xu, Tao Wei, Bin Sun, Xiao Wei Couteau, Christophe Bachelot, Renaud Laboratory CNRS ERL 7004 University of Technology of Troyes 12 rue Marie Curie Troyes CedexF-10004 France Shenzhen Planck Innovation Technologies Co. Ltd Shenzhen China Université Paris Saclay CEA CNRS NIMBE Gif sur YvetteF-91191 France 50 Nanyang Drive Singapore637553 Singapore Université Paris Saclay CEA CNRS SPEC Gif sur YvetteF-91191 France Université de Haute Alsace CNRS IS2M UMR 7361 MulhouseF-68100 France Université de Strasbourg France Thales Solutions Asia Pte Ltd R&T Department 21 Changi North Rise Singapore498788 Singapore School of Electrical and Electronic Engineering Nanyang Technological University Nanyang Avenue Singapore639798 Singapore School of Mechatronic Engineering and Automation Key lab of advanced display and system application Ministry of Education Shanghai University Shanghai2000072 China Sino-European School of Technology Shanghai University Shanghai China Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen Guangdong518055 China

Hybrid plasmonic nanoemitters based on the combination of quantum dot emitters (QD) and plasmonic nanoantennas open up new perspectives in the control of light. However, precise positioning of any active medium at the nanoscale constitutes a challenge. Here, we report on the optimal overlap of antenna’s near-field and active medium whose spatial distribution is controlled via a plasmon-triggered 2-photon polymerization of a photosensitive formulation containing QDs. Au nanoparticles of various geometries are considered. The response of these hybrid nano-emitters is shown to be highly sensitive to the light polarization. Different light emission states are evidenced by photoluminescence measurements. These states correspond to polarization-sensitive nanoscale overlap between the exciting local field and the active medium distribution. The decrease of the QD concentration within the monomer formulation allows trapping of a single quantum dot in the vicinity of the Au particle. The latter objects show polarization-dependent switching in the single-photon regime. Copyright © 2020, The Authors. All rights reserved.

关键词： Semiconductor quantum dots

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