Theoretical Study of the Structured Blue Emission of pbwo4

The experimentally observed structure in the blue emission of PbWO4 crystals is analyzed theoretically. The full interaction Hamiltonian, including ligand field, Jahn-Teller, pseudo Jahn-Teller, and spin-orbit interactions is considered. The emission band shape is numerically calculated using Monte Carlo integration using both semiclassical and quantum-mechanical approaches. Theoretical results are qualitatively compared to experimentally observed spectra.