Electrical Control of Lifetime-Limited Quantum Emitters Using 2D Materials

Year: 2019

Authors: Schadler K., Ciancico C., Pazzagli S., Lombardi PE., Bachtold A., Toninelli C., Reserbat-Plantey A., Koppens, FHL

Autors Affiliation: Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Castelldefels 08860, Spain; LENS, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; CNR INO, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Univ Firenze, Dipartimento Fis & Astron, Via Sansone 1, I-50019 Sesto Fiorentino, Italy; QSTAR, Largo Fermi 2, I-50125 Florence, Italy; ICREA, Barcelona 08010, Spain.

Abstract: Solid-state quantum emitters are a mainstay of quantum nanophotonics as integrated single-photon sources (SPS) and optical nanoprobes. Integrating such emitters with active nanophotonic elements is desirable in order to attain efficient control of their optical properties, but it typically degrades the photostability of the emitter itself. Here, we demonstrate a tunable hybrid device that integrates state of the art lifetime-limited single emitters (line width similar to 40 MHz) and 2D materials at subwavelength separation without degradation of the emission properties. Our device’s nanoscale dimensions enable ultrabroadband tuning (tuning range >400 GHz) and fast modulation (frequency similar to 100 MHz) of the emission energy, which renders it an integrated, ultracompact tunable SPS. Conversely, this offers a novel approach to optical sensing of 2D material properties using a single emitter as a nanoprobe.

Journal/Review: NANO LETTERS

Volume: 19 (6)      Pages from: 3789  to: 3795

More Information: F.H.L.K. acknowledges financial support from the Government of Catalonia through an SGR grant (2014-SGR-1535), and from the Spanish Ministry of Economy and Competitiveness, through the “”Severo Ochoa”” Programme for Centres of Excellence in R&D (SEV-2015-0522), support by Fundacio Cellex Barcelona, CERCA Programme/Generalitat de Catalunya, and the Mineco grants Ramon y Cajal (RYC-2012-12281) and Plan Nacional (FIS2013-47161-P and FIS2014-59639-JIN). A.B. acknowledges financial support from Plan Nacional (FIS2015-69831-P). This project has received funding from the EraNET Cofund Initiatives QuantERA under the European Union?s Horizon 2020 research and innovation programme grant agreement No. 731473 (project ORQUID) as well as from COST Action MP1403 (Nanoscale Quantum Optics).
KeyWords: Single molecules; 2D materials; electrical control; single photon source; Stark effect; lifetime-limited line width
DOI: 10.1021/acs.nanolett.9b00916

Citations: 33
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