{"title":"CHARACTERIZATION OF (CdSe)ZnS CORE-SHELL QUANTUM DOTS IN MICRODROP LASER CAVITY","authors":"S. Iftiquar, Yenny Wijaya, R. Dumke","doi":"10.1142/S1793528811000160","DOIUrl":null,"url":null,"abstract":"Lasing behavior of water soluble (CdSe)ZnS core-shell quantum dots (QD) has been investigated in a spherical liquid microdrop cavity. We have estimated the minimum volume fraction of QD necessary for lasing as 9.27 ×10-6 and emission cross section of the QDs as 4.5 ×10-15 cm2. The microdrop liquid cavity has been characterized with the help of rhodamine 6G (Rh6G) dye and we found its cavity Q factor in whispering gallery mode (WGM) resonance to be 1.4 ×104.","PeriodicalId":106270,"journal":{"name":"Optics and Photonics Letters","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Photonics Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/S1793528811000160","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
Lasing behavior of water soluble (CdSe)ZnS core-shell quantum dots (QD) has been investigated in a spherical liquid microdrop cavity. We have estimated the minimum volume fraction of QD necessary for lasing as 9.27 ×10-6 and emission cross section of the QDs as 4.5 ×10-15 cm2. The microdrop liquid cavity has been characterized with the help of rhodamine 6G (Rh6G) dye and we found its cavity Q factor in whispering gallery mode (WGM) resonance to be 1.4 ×104.
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