Beschreibung:
<jats:sec><jats:label /><jats:p>Substitution of O in the ZnS lattice is observed to result in a doublet consisting of two local vibrational modes (LVMs) and a second order harmonic of the LVMs. The first order doublet is attributed to vibrational modes of a defect with trigonal (<jats:italic>C<jats:sub>3v</jats:sub></jats:italic>) symmetry. The results of temperature dependent resonant Raman scattering and anti‐Stokes scattering support this assignment. The substitution of O in the lattice also leads to the presence of LVM + <jats:italic>n</jats:italic>LO combination modes, which are interpreted in terms of the cascade model and resonance effects.</jats:p></jats:sec>