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physics.atom-ph2018★ 21 cited
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…
physics.atom-ph2014★ 7 cited
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…