Polarization dressed multi-order fluorescence of Pr3+:Y2SiO5

Abstract

We report polarization dressed second-, fourth- and sixth-order fluorescence processes in a Pr³⁺:Y₂SiO₅ crystal. By changing the polarization states of dressing fields and generating fields, the fluorescence baselines, suppression and Autler–Townes splitting of emission peaks can be controlled. The polarization dependencies of fluorescence generated from two inequivalent crystallographic sites are compared. The experimental results agree with the dressing theoretical calculations well.