98 citations · 485 across the 15 of their papers we have counts for
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Characteristics of long-lived persistent spectral holes in at
René Oswald, Michael Hansen, Eugen Wiens +2
Properties of persistent spectral holes (SHs) relevant for frequency metrology have been investigated in the system (0.5%) at crystallographic site 1 and a t…
A silicon single-crystal cryogenic optical resonator
Eugen Wiens, Qun-Feng Chen, Ingo Ernsting +4
We report on the demonstration and characterization of a silicon optical resonator for laser frequency stabilization, operating in the deep cryogenic regime at temperatures as low…
A narrow-linewidth external cavity quantum dot laser for high-resolution spectroscopy in the near-infrared and yellow spectral ranges
A. Yu. Nevsky, U. Bressel, Ch. Eisele +7
We demonstrate a diode laser system which is suitable for high-resolution spectroscopy in the 1200 nm and yellow spectral ranges. It is based on a two-facet quantum dot chip in a L…
A New Option for a Search for Alpha Variation: Narrow Transitions with Enhanced Sensitivity
S. G. Karshenboim, A. Yu. Nevsky, E. J. Angstmann +2
We consider several transitions between narrow lines that have an enhanced sensitivity to a possible variation of the fine structure constant, alpha. This enhancement may allow a s…