Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array

Beierlein J, Egorov OA, Harder TH, Gagel P, Emmerling M, Schneider C, Hoefling S, Peschel U, Klembt S (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Advanced Optical Materials Wiley

Book Volume: 9

Article Number: 2100126

Journal Issue: 13

DOI: 10.1002/adom.202100126

Abstract

Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. Here, the authors report on Bloch oscillations of hybrid light−matter particles, called exciton-polaritons (polaritons), being confined in an array of coupled microcavity waveguides. To this end, the waveguide widths and their mutual couplings are carefully designed such that a constant energy gradient is induced perpendicular to the direction of motion of the propagating polaritons. This technique allows us to directly observe and study Bloch oscillations in real- and momentum-space. Furthermore, the experimental findings are supported by numerical simulations based on a modified Gross–Pitaevskii approach. This work provides an important transfer of basic concepts of quantum mechanics to integrated solid state devices, using quantum fluids of light.

Authors with CRIS profile

Ulf Peschel

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Julius-Maximilians-Universität Würzburg DE Germany (DE) Carl von Ossietzky Universität Oldenburg DE Germany (DE)

How to cite

APA:

Beierlein, J., Egorov, O.A., Harder, T.H., Gagel, P., Emmerling, M., Schneider, C.,... Klembt, S. (2021). Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array. Advanced Optical Materials, 9(13). https://doi.org/10.1002/adom.202100126

MLA:

Beierlein, Johannes, et al. "Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array." Advanced Optical Materials 9.13 (2021).

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