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Testing the Renormalization of the von Klitzing Constant by Cavity Vacuum Fields
Josefine Enkner, Lorenzo Graziotto, Felice Appugliese +7
In light of recent developments demonstrating the impact of cavity vacuum fields inducing the breakdown of topological protection in the integer quantum Hall effect, a compelling q…
Third order nonlinear correlation of the electromagnetic vacuum at near-infrared frequencies
Francesca Fabiana Settembrini, Alexa Herter, Jèrôme Faist
In recent years, electro-optic sampling, which is based on Pockel's effect between an electromagnetic mode and a copropagating, phase-matched ultrashort probe, has been largely use…
Quantum Walk Comb in a Fast Gain Laser
Ina Heckelmann, Mathieu Bertrand, Alexander Dikopoltsev +3
Synthetic lattices in photonics enable the exploration of light states in new dimensions, transcending phenomena common only to physical space. We propose and demonstrate a Quantum…
Terahertz chiral sub-wavelength cavities breaking time-reversal symmetry via ultra-strong light-matter interaction
Johan Andberger, Lorenzo Graziotto, Luca Sacchi +3
We demonstrate terahertz chiral sub-wavelength cavities that break time-reversal symmetry by coupling the degenerate linearly polarized modes of two orthogonal sets of nano-antenna…
Broadband surface-emitting THz laser frequency combs with inverse-designed integrated reflectors
Urban Senica, Sebastian Gloor, Paolo Micheletti +4
THz quantum cascade lasers (QCLs) based on double metal waveguides feature broadband and high-temperature devices for use in spectroscopy and sensing. However, their extreme field…
Frequency-modulated combs via on-chip field enhancement
Urban Senica, Alexander Dikopoltsev, Andres Forrer +5
Frequency-modulated (FM) combs feature flat intensity spectra with a linear frequency chirp, useful for metrology and sensing applications. Generating FM combs in semiconductor las…