6533b834fe1ef96bd129caec

RESEARCH PRODUCT

Transient optical absorption in KNbO3 crystals irradiated with pulsed electron beam

Donats MillersLarisa GrigorjevaEugene A. KotominEugene S. Polzik

subject

Potassium niobateAbsorption spectroscopyKineticsInfrared spectroscopyGeneral ChemistryRadiationCondensed Matter Physicschemistry.chemical_compoundchemistryMaterials ChemistryCathode rayIrradiationAtomic physicsAbsorption (electromagnetic radiation)Nuclear chemistry

description

Abstract Transient optical absorption spectra as well as absorption decay kinetics in pure, Mg- and Rb-doped KNbO 3 have been measured at RT after pulsed (10 ns, 0.27 MeV) electron beam irradiation. Three types of short-lived radiation defects are observed with bands peaking at ∼460 nm, ∼780 nm and > 1000nm. The relevant radiation-induced decay processes are discussed.

https://doi.org/10.1016/s0038-1098(97)00309-8