The polarized absorption and emission spectra of a KPb2Cl5(KPC) crystal activated with Ho3+ions have been measured in the 400–4000 nm region. The absorption spectra have been analyzed in the framework of the Judd-Ofelt Theory and the results have been compared with those, contradictory, reported in literature. The emission measurements in near and mid infrared confirm the attractiveness of this material for 2, 3 and 4 μm laser applications, thanks to the very low phonon cut-off (203 cm−1) of the host lattice.
Polarized optical spectra of Ho3+-doped KPb2Cl5single-crystal / Damiano, E.; Cavalli, E.; Tarasova, A. Yu.; Isaenko, L. I.; Tonelli, M.. - In: JOURNAL OF LUMINESCENCE. - ISSN 0022-2313. - 199(2018), pp. 71-77. [10.1016/j.jlumin.2018.02.068]