Characteristics of the spectral and luminescence properties of Nd3+ ions in γ-La2S3 semiconductor single crystals

Radiative transitions from states located above the ⁴F_3/2 metastable state were observed in a γ-La₂S₃:Nd³⁺ semiconductor single crystal. An analysis of the temperature dependences of the radiation spectra using timeresolution spectroscopy, an analysis of the excited-state decay curves, and a comparison of the emission and absorption spectra were used to identify the intermultiplet transitions observed in the emission spectrum. It was found that neodymium ions could be excited in the fundamental absorption band of the host.