Search results for "Oxygen Deficient Center"

showing 2 items of 2 documents

Isoelectronic series of oxygen deficient centers in silica: experimental estimation of homogeneous and inhomogeneous spectral widths

2008

We report nanosecond time-resolved photoluminescence measurements on the isoelectronic series of oxygen deficient centers in amorphous silica related to silicon, germanium and tin atoms, which are responsible of fluorescence activities at approximately 4 eV under excitation at approximately 5 eV. The dependence of the first moment of their emission band on time and that of the radiative decay lifetime on emission energy are analyzed within a theoretical model able to describe the effects introduced by disorder on the optical properties of the defects. We obtain separate estimates of the homogeneous and inhomogeneous contributions to the measured emission line width, and we derive homogeneou…

PhotoluminescenceMaterials scienceOscillator strengthTemperatureFOS: Physical sciencesSilicaElectronsDisordered Systems and Neural Networks (cond-mat.dis-nn)Condensed Matter - Disordered Systems and Neural NetworksNanosecondSilicon DioxideMolecular physicsCrystallographic defectOxygen Deficient CenterOxygenLaser linewidthMolecular vibrationAtomLuminescent MeasurementsInhomogeneous Spectral WidthPhysical and Theoretical ChemistryExcitation
researchProduct

Luminescence of localized states in oxidized and fluorinated silica glass

2019

This work was supported by the Latvian Science Council Grant No lzp-2018/1-0289.

Materials sciencePhotoluminescenceRecombination luminescenceTime resolved photoluminescencePhysics::OpticsFOS: Physical sciences02 engineering and technologyLocalized statesPhotochemistryExcimer01 natural sciencesCondensed Matter::Disordered Systems and Neural Networkslaw.inventionlaw0103 physical sciencesMaterials Chemistry:NATURAL SCIENCES:Physics [Research Subject Categories]Pure silica glass010302 applied physicsCondensed Matter - Materials ScienceSelf-trapped holeMaterials Science (cond-mat.mtrl-sci)021001 nanoscience & nanotechnologyCondensed Matter PhysicsLaserElectronic Optical and Magnetic MaterialsAtomic electron transitionAttenuation coefficientCeramics and CompositesCharge carrier0210 nano-technologyLuminescenceExcitationOxygen deficient centersExcimer lasers
researchProduct