Work

Mid-infrared photon pair generation in AgGaS2

Year: 2021

Type: article

Abstract: We demonstrate nondegenerate photon pair generation by spontaneous parametric downconversion in a silver gallium sulfide AgGaS2 crystal. By tuning the pump wavelength, we achieve phase matching over a large spectral range. This allows to generate idler photons in the mid-infrared spectral range above a 6 μm wavelength with corresponding signal photons in the visible. Also, we show photon pair generation with broad spectral bandwidth. These results are a valuable step toward the development of quantum imaging and sensing techniques in the mid-infrared.

Source: Applied Physics Letters

DOI: 10.1063/5.0074054

Authors: Mohit Kumar, Pawan Kumar, Andres Vega, Maximilian A. Weissflog, Thomas Pertsch, Frank Setzpfandt

Institutions: Friedrich Schiller University Jena, Max Planck School of Photonics, Fraunhofer Institute for Applied Optics and Precision Engineering

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung

OpenAlex ID: W3203876497

FWCI: 0.695

Cites: 28

Cited by: 17

Related to: 20