英语翻译

Inthepresenttreatment,justoneexperimentalvalueis

neededtoevaluatetheoxideionpolarizabilityaO23and

opticalbasicityL,thatis,theenergygapEgorrefractive

indexn.Thereisnomodelsofarinvolvingoptical

electronegativityDw2glassasaparameterinobtainingthe

opticalbasicityLandelectronicpolarizabilityaO23values

ofbinaryoxideglasses.WefindEqs.(4)and(5)suitablefor

theestimationoftheopticalbasicityLandelectronic

polarizabilityaO23.Thesimplicityofthepresentstudyisto

estimatetheopticalbasicityLandelectronicpolarizability

aO23valuesfordifferentbinaryoxideglasses,justone

experimentalvalueisneeded,thatis,theopticalelectronegativity

valuesDw2glass.TheestimatedopticalbasicityL

andelectronicpolarizabilityaO23ofbinaryoxideglasses

basedonDw2narepresentedinTable1(columns11and13).

Forcomparisons,thevaluesofDimitrovandKomatsu[10]

arealsoincludedinthesametable(columns10and12)

ThecalculatedvaluesofelectronicpolarizabilityaO23and

opticalbasicityLareplottedagainsttheexperimental

valuesinFigs.3and4,respectively.Agoodagreementcan

beobservedbetweentheelectronicpolarizabilityaO23and

opticalbasicityLvaluesobtainedwithdifferentinitial

quantities.

OurestimatedoxideionpolarizabilityaO23andoptical

basicityLvaluesusingtheopticalelectronegativityDw2glass

(Eqs.(4)and(5))deviateslightlyfromthevaluesof

DimitrovandKomatsu[10]inthecaseofPbO3P2O5,

PbO3B2O3,andPbO–SiO2.ForRnOm3TiO2(R¼K2O,

Rb2O,andPbO)compositions,theestimatedoxideion

polarizabilityaO23andopticalbasicityLvaluesusing

Eqs.(4)and(5)athigherfirstoxidepercentagedeviate

moreincomparisonwiththevaluesofDimitrovand

Komatsu[10].Afairagreementhasbeenobservedbetween

thesevaluesintherestofthecomposition.Thismeansthat

thedeterminationofoxid