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A Chiral One-dimensional Atom Using a Quantum Dot in an Open Microcavity

Alisa Javadi, Nadia O. Antoniadis, Natasha Tomm, Tomasz Jakubczyk, Rüdiger Schott, Sascha R. Valentin, Andreas Dirk Wieck, Arne Ludwig, Richard John Warburton

Published Jan 1, 2023• 0 citations
Publisher

Abstract

We realize an optical equivalent of a diode that simultaneously shows nonlinear and non-reciprocal behavior. Using a quantum dot in a microcavity, we show that photon transmission is one order of magnitude larger in the forward direction compared to the backward direction. The system shows a strong nonlinearity with an onset at 100pW.
DOI
10.1364/cleo_fs.2023.ff3g.7

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Photonic information processing requires giant optical non-linearities to implement logic gates between photons and optical switches at the single photon level. A very promising non-linear medium is a "one dimensional atom", that is a directional high-finesse cavity containing a resonant two-level system in the Purcell regime. We aim at experimentally demonstrating this effect using a single quantum dot in a symmetric micropillar, the directionality of the micropillar ensuring the one-dimensionality of the problem.
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