Eremenko, V.V.; Fomin, V.I.; Kurnosov, V.S.
(Физика низких температур, 2000)
We demonstrate that anti-Stokes excitation of Mn²⁺ ions in the CsMnCl₃⋅2H₂O crystal can occur through multiphonon addition to the energy of the photons of exciting light. The deficit dE between the energy of the Mn²⁺ ⁴T₁ ...