0000000001034032

AUTHOR

Saulius Tumėnas

showing 2 related works from this author

Luminescence properties of LiGaO2 crystal

2017

The study was supported by the Latvia-Lithuania-Taiwan research project “Nonpolar ZnO thin films: growth-related structural and optical properties” (Latvia: LV-LT-TW/2016/5 , Lithuania: TAP LLT 02/2014 , Taiwan: MOST 103-2923-M-110-001-MY3 ).

PhotoluminescenceLuminescenceLithium metagallateKineticschemistry.chemical_element02 engineering and technology01 natural sciences7. Clean energyThermoluminescenceInorganic ChemistryCrystal0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]Electrical and Electronic EngineeringPhysical and Theoretical ChemistryAbsorption (electromagnetic radiation)Polarization (electrochemistry)SpectroscopyDonor-acceptor pair010302 applied physicsOrganic Chemistry021001 nanoscience & nanotechnologyAtomic and Molecular Physics and Optics3. Good healthElectronic Optical and Magnetic MaterialschemistryLithiumAtomic physics0210 nano-technologyLuminescenceRecombination process
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Optical properties of lithium gallium oxide

2017

Abstract The optical dielectric function tensor of orthorhombic single-crystal LiGaO 2 was determined for polarizations along a , b , and c crystal-axis in the photon energy range from 0.04 eV to 6.5 eV by the generalized spectroscopic ellipsometry. In the far-infrared spectral range from 12.4 meV to 40 meV, the dielectric function was determined from conventional polarized transmittance and polarized reflectance measurements. Lineshape analysis of the dielectric function tensor major components allowed for a determination of the long-wavelength optical phonon characteristics, refractive indices dispersion, and parameters of interband and excitonic optical transitions.

Materials sciencePhononPhysics::OpticsGeneral Physics and Astronomychemistry.chemical_element02 engineering and technologyPhoton energy01 natural sciencesMolecular physicsCondensed Matter::Materials ScienceCondensed Matter::Superconductivity0103 physical sciencesDispersion (optics)TransmittanceTensor010302 applied physicsbusiness.industrySurfaces and InterfacesGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter PhysicsSurfaces Coatings and FilmschemistryOptoelectronicsLithiumOrthorhombic crystal system0210 nano-technologybusinessRefractive indexApplied Surface Science
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