Purcell enhanced Er<sup>3+</sup>- ion fluorescence in a single nano-de-focusing plasmonic waveguide

ORAL

Abstract

Enhancing quantum emitter fluorescence by tailoring its electromagnetic environment on the nanoscale is key for realizing brighter light sources with associated control over their modal coupling behaviour. In this context, the Purcell effect [1] constitutes an important mechanism allowing to greatly enhance fluorescence rate of emitters when coupled to electromagnetic cavity modes. However, highly resonant structures such as dielectric cavities are inherently bandwidth limited, strongly restricting their use to one specific transition or optical state. Meanwhile, metallic structures can provide extremely high enhancement factors over a wide frequency range due to small modal volumes provided by plasmonic sub-wavelength confinement, even off-resonance. One important feature, which has remained elusive in this context, is the efficient coupling and guided extraction of enhanced quantum emission on and from the nanoscale.

This work presents a hybrid plasmonic waveguide platform [2,3] which enables efficient de-focusing of strongly Purcell enhanced quantum emitter fluorescence by coupling emitters to a highly confined non-resonant plasmonic waveguide mode. Accessing technologically relevant wavelengths, we demonstrate the working principle and efficient operation of our platform throughout the entire telecommunications C-band using erbium ion emitters. 

[1]        E. M. Purcell, H. C. Torrey, and R. V. Pound, Phys. Rev. 69, 37 (1946).

[2]        N. A. Güsken, M. P. Nielsen, N. B. Nguyen, S. A. Maier, and R. F. Oulton, Opt. Express 26, 30634 (2018).

[3]        R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, and X. Zhang, Nat. Photonics 2, 496 (2008).

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Publication: PLANNED/IN-SUBMISSION:
Nano-de-focusing multiple electric dipole transitions of enhanced quantum emitter fluorescence
BY
N.A. Güsken, M. Fu, M. Zapf, M.P. Nielsen, P. Dichtl, R.Röder, S.A. Maier, C. Ronning and R.F Oulton

Presenters

  • Nicholas A Gusken

    • The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK; Gabelle Laboratory, Stanford University, CA
    • Geballe Laboratory for Advanced Materials, Stanford Unitersity,CA & The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK

Authors

  • Nicholas A Gusken

    • The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK; Gabelle Laboratory, Stanford University, CA
    • Geballe Laboratory for Advanced Materials, Stanford Unitersity,CA & The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK

  • Ming Fu

    • Imperial College London
    • The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK

  • Maximilian Zapf

    • Institute of Solid State Physics, Friedrich Schiller University of Jena, Max-Wien-Platz 1, 07743, Jena, Germany
    • Institute for Solid State Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany

  • Michael Nielsen

    • Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
    • University of New South Wales Sydney NSW, Australia,2052

  • Paul Dichtl

    • The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK

  • Robert Roeder

    • Institute of Solid State Physics, Friedrich Schiller University of Jena, Max-Wien-Platz 1, 07743, Jena, Germany
    • Institute for Solid State Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany

  • Carsten Ronning

    • Institute of Solid State Physics, Friedrich Schiller University of Jena, Max-Wien-Platz 1, 07743, Jena, Germany
    • Institute for Solid State Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany

  • Stefan A Maier

    • Chair in Hybrid Nanosystems, Faculty of Physics, Ludwig Maximilians Universität München, 80539, München, Germany
    • Nanoinstitut München, Fakultät für Physik, Ludwig-Maximilians-Universität München, Königinstraße 10, 80539 München, Germany

  • Rupert F Oulton

    • The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK