新型硫系玻璃紅外材料的制備及性能研究.pdf

1、復旦大學碩士學位論文新型硫系玻璃紅外材料的制備及性能研究姓名：陶光明申請學位級別：碩士專業(yè)：光學指導教師：韋瑋20090522新型硫系玻璃紅外材料的制備及其性能研究ABSTRACT復旦大學碩士學位論文Chalcogenideglasspossessmanyuniqueopticalproperties，suchaswideIRtransparencyhighrefractiveindex，lowphononenergyahighopti

2、calnonlinearcoefficient，goodchemicaldurabilityandglassformingabilityandawidevarietyofphotoinducedphenomenaButtherearesomeboffleneckproblemswhichrestrictingfurtherresearchandapplicationofchalcogenideglassFirstlyofall，ther

3、are—earthionsdopingconcentrationislimitedSecondlytheimpuritiesinchalcogenidehostglasshaveadetrimentaleffectontheIRtransparencytherefractiveindex，thesolubilityofREionsandthefluorescenceefficiencyInordertoobtainhighquantum

4、efficiencyitisnecessaryteducetheimpurities，suchasOH，asmuchaspossibleInthemeantime，thevisible／infraredtransparencyofchalcogenideglassisveryimportantforinfraredfibrematerialMoreoverthepoorthermalpropertiesofchalcogenidegla

5、ssalsoshouldbeimprovedforpracticaluseInviewofthebasicproblemsinchalcogenideglassresearch，thisthesisfocusesontwokindsofchalcogenideglassasfollowing(A)WepresentanovelGeGaCdSchalcogenideglassdopedwithhighD曠concentrationfort

6、hefirsttimeTheirthermodynamicperformances。VickersmicrohardnessaswellasopticalpropertiesweremeasuredandarediscussedjndetailDy3dopedGaGaCdSglasseswouldbegoodpotentialcandidatesofchalcogenideglassforlasers，amplifiers，andhig

7、hbrightnesssourcesinthenearandmid—IRregion(B)WepresentanovelGeGaS—NaFchalcogenideglasswithgoodinfraredtransparencyTheresultsshowthatwhenfluorinisintroducedintochalcogenideglass，theinfraredtransparencyismarkedlyimproved，t

8、hethermodynamicperformanceismodifiedTheRamanspectroscopyindicatesthattheintroducedfluoridecouldreplacethepositionofSaroundtheGeandform【Ga(FGe=】structuraIunitsTheseresultsshowthatGeGaSNaFglasswouldbeanexcellentcandidatefo