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Giant microwave-optical Kerr nonlinearity via Rydberg excitons in cuprous oxide [dataset] Open Access

Microwave-optical conversion is key to future networks of quantum devices, such as those based on superconducting technology. Conversion at the single quantum level requires strong nonlinearity, high bandwidth, and compatibility with a millikelvin environment. A large nonlinearity is observed in Rydberg atoms, but combining atomic gases with dilution refrigerators is technically challenging. Here we demonstrate that a strong microwave-optical nonlinearity in a cryogenic, solid-state system by exploiting Rydberg states of excitons in \cuprite. We measure a microwave-optical cross-Kerr coefficient of B0=0.022±0.008 m V−2 at 4~K, which is several orders of magnitude larger than other solid-state systems. Our results highlight the potential of Rydberg excitons for nonlinear optics, and form the basis for a microwave-optical frequency converter based on Cu2O.

Descriptions

Resource type

Dataset

Contributors

Creator: Gallagher, Liam ¹
Contact person: Gallagher, Liam ¹
Data collector: Gallagher, Liam ¹
Data curator: Gallagher, Liam ¹
Contact person: Jones, Matthew ¹
Contact person: Pritchett, Jon ¹
Data collector: Pritchett, Jon ¹
Contact person: Brewin, Alistair ¹
Contact person: Wong, Horatio ¹
Contact person: Langbein, Wolfgang ²
Contact person: Lynch, Stephen ²
Contact person: Adams, Stuart ¹

¹ Durham University
² Cardiff University

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Nonlinear optics
Cuprous oxide
Microwave-optical conversion
Rydberg excitons

Subject

Rydberg states
Nonlinear optics

Location

Language

Cited in

doi:10.1063/5.0192710

Identifier

ark:/32150/r27d278t10x
doi:10.15128/r27d278t10x

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

L.A.P. Gallagher

Date Uploaded

1 December 2023, 14:12:24

Date Modified

30 April 2024, 10:04:05

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Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 21392450

Last modified: 2024:02:16 18:05:39+00:00

Filename: readme.zip

Original checksum: cc6433d525ea377bc4b2a00809da093b