47 citations · 116 across the 5 of their papers we have counts for
5 papers
Spatially resolved spectroscopy of alkali metal vapour diffusing inside hollow-core photonic crystal fibres
Daniel R Häupl, Daniel Weller, Robert Löw +1
We present a new type of compact and all-glass based vapour cell integrating hollow-core photonic crystal fibres. The absence of metals, as in a traditional vacuum chamber and the…
The interplay between thermal Rydberg gases and plasmas
Daniel Weller, James P. Shaffer, Tilman Pfau +2
We investigate the phenomenon of bistability in a thermal gas of cesium atoms excited to Rydberg states. We present both measurements and a numerical model of the phenomena based o…
Fiber-integrated spectroscopy device for hot alkali vapor
Josephine Gutekunst, Daniel Weller, Harald Kübler +4
We introduce an all-glass, vacuum tight, fiber-integrated and alkali compatible spectroscopy device consisting of two conventional optical fibers spliced to each end of a capillary…
High vacuum compatible fiber feedthrough for hot alkali vapor cells
Daniel Weller, Arzu Yilmaz, Harald Kübler +1
We demonstrate a method to produce vacuum tight, metal free, bakeable and alkali compatible feedthroughs for optical fibers. The manufacturing process mainly relies on encasing fib…
Charge-induced optical bistability in thermal Rydberg vapor
Daniel Weller, Alban Urvoy, Andy Rico +2
We investigate the phenomenon of optical bistability in a driven ensemble of Rydberg atoms. By performing two experiments with thermal vapors of rubidium and cesium, we are able to…