{"title":"Picosecond all-optical modulation in CdTe/CdZnTe multi-quantum wells under an applied electric field","authors":"R. Grac, M. Pugnet, N. Magnea, J. Pautrat","doi":"10.1109/SIM.1996.570916","DOIUrl":null,"url":null,"abstract":"We present single shot transmission experiments with 20 ps laser pulses. When a 10/sup 5/ V/cm static electric field is applied on a CdTe/Cd/sub 0.62/Zn/sub 0.38/Te multiple quantum well, the optical transmission increases. At a 804 nm wavelength the enhancement factor is equal to 1.6. For a pulse intensity higher than 0.7 fJ /spl mu/m/sup -2/, screening of the applied electric field occurs, restoring a zero-field transmission. These experiments imply that the screening rise time is shorter than 10 ps which results from weak confinement of the holes within the quantum wells.","PeriodicalId":391894,"journal":{"name":"Proceedings of Semiconducting and Semi-Insulating Materials Conference","volume":"291 3","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of Semiconducting and Semi-Insulating Materials Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SIM.1996.570916","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We present single shot transmission experiments with 20 ps laser pulses. When a 10/sup 5/ V/cm static electric field is applied on a CdTe/Cd/sub 0.62/Zn/sub 0.38/Te multiple quantum well, the optical transmission increases. At a 804 nm wavelength the enhancement factor is equal to 1.6. For a pulse intensity higher than 0.7 fJ /spl mu/m/sup -2/, screening of the applied electric field occurs, restoring a zero-field transmission. These experiments imply that the screening rise time is shorter than 10 ps which results from weak confinement of the holes within the quantum wells.
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