SAMOP 2023 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 39: Quantum Optics & Nano-Optics

Q 39.2: Talk

Wednesday, March 8, 2023, 14:45–15:00, F342

Frequency Conversion in pressurized Hydrogen — •Alireza Aghababaei and Simon Stellmer — Nussallee 12, 53115 Bonn, Deutschland

State-preserving frequency conversion in the optical domain is a necessary component in many configurations of quantum information processing and communication. Thus far, nonlinear crystals are used for this purpose. Here, we report on a new approach based on coherent anti-Stokes Raman scattering (CARS) in dense molecular hydrogen gas. This four-wave mixing process sidesteps the limitations imposed by crystal properties, it is intrinsically broadband and does not generate an undesired background. We demonstrate this method by converting photons from 434 nm to 370 nm and show that their polarization is preserved.