3 papers
physics.optics2025
Measuring deviations from a perfectly circular cross-section of an optical nanofiber at the à ngström scale
Jihao Jia, Felix Tebbenjohanns, Thomas Hoinkes +3
Tapered optical fibers (TOFs) with sub-wavelength-diameter waists, known as optical nanofibers, are powerful tools for interfacing quantum emitters and nanophotonics. These applica…
quant-ph2024
Emergence of second-order coherence in superfluorescence
Constanze Bach, Felix Tebbenjohanns, Christian Liedl +2
We experimentally investigate the second-order quantum coherence function of a superradiant burst in a cascaded quantum system. We chirally (i.e. direction-dependently) couple roug…
quant-ph2024
Predicting correlations in superradiant emission from a cascaded quantum system
Felix Tebbenjohanns, Christopher D. Mink, Constanze Bach +2
In recent experiments, a novel type of cascaded quantum system has been realized using nanofiber-coupled cold atomic ensembles. This setup has enabled the study of superradiant dec…