SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Quantum Optics with Photons I
Q 58.6: Vortrag
Donnerstag, 9. März 2023, 15:45–16:00, F442
Terahertz sensing with undetected photons — •Mirco Kutas1,2, Björn Haase1,2, Jens Klier1, Georg von Freymann1, 2, and Daniel Molter1 — 1Fraunhofer Institute for Industrial Mathematicutes ITWM, Fraunhofer-Platz 1, 67663 Kaiserslarn — 2Department of Physics and Research Center OPTIMAS, Technische Universität Kaiserslautern (TUK), 67663 Kaiserslautern
Today, terahertz applications are widely used in industry as well as scientific research. Although the used components have undergone a tremendous development in recent decades, detection of terahertz radiation is still subject of current investigation. By using a quantum-optical measurement concept, we demonstrate a novel approach to detect phase-sensitive terahertz information. With this concept, it is possible to transfer the terahertz photon properties after interaction with a sample to visible photons. As a result, detection can be realized by easily accessible and highly developed silicon-based detectors without the need of cooling or expensive equipment. We report on the demonstration of quantum sensing and spectroscopy in the terahertz frequency range by only detecting visible light.