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arXiv · 2203.04567

Efficient quadrature-squeezing from biexcitonic parametric gain in atomically thin semiconductors

Emil V. Denning·Andreas Knorr·Florian Katsch·Marten Richter
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Abstract

Modification of electromagnetic quantum fluctuations in the form of quadrature-squeezing is a central quantum resource, which can be generated from nonlinear optical processes. Such a process is facilitated by coherent two-photon excitation of the strongly bound biexciton in atomically thin semiconductors. We show theoretically that interfacing an atomically thin semiconductor with an optical cavity allows to harness this two-photon resonance and use the biexcitonic parametric gain to generate squeezed light with input power an order of magnitude below current state-of-the-art devices with conventional third-order nonlinear materials that rely on far off-resonant nonlinearities. Furthermore, the squeezing bandwidth is found to be in the range of several meV. These results identify atomically thin semiconductors as a promising candidate for on-chip squeezed-light sources.

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Emil V. Denning, Andreas Knorr, Florian Katsch, Marten Richter. 2022-03-09. Efficient quadrature-squeezing from biexcitonic parametric gain in atomically thin semiconductors. https://doi.org/10.1103/physrevlett.129.097401

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