6533b854fe1ef96bd12ade87

RESEARCH PRODUCT

Time-resolved luminescence and induced absorption in PbWO4

M. SchneegansLarisa GrigorjevaI. DafineiS. ChernovEtiennette AuffrayPaul LecoqAnatoli I. PopovDonats Millers

subject

ChemistryPulse (signal processing)BiophysicsGeneral ChemistryCondensed Matter PhysicsBiochemistryAtomic and Molecular Physics and OpticsAbsorption bandExcited stateTime resolved luminescenceIrradiationAtomic physicsLuminescenceAbsorption (electromagnetic radiation)

description

Abstract Luminescence and short-lived induced absorption are studied for two undoped PbWO4 crystals. Luminescence decay at LNT is delayed relative to irradiation pulse. The delay observed is either due to reabsorption of luminescence or due to creation of luminescence center excited states via energy or/and charge transfer after irradiation pulse. Short-lived absorption is observed within 1.1–3.6 eV spectral region at LNT as well as at RT. It is proposed that the short-lived absorption band peaking at ~ 3.5 eV is intrinsic.

https://doi.org/10.1016/s0022-2313(96)00320-1