{"title":"自由和三维受限激子的振子强度、失相和斯塔克位移","authors":"M. Dagenais","doi":"10.1364/nlopm.1988.tua4","DOIUrl":null,"url":null,"abstract":"The concept of giant oscillator strength for both free and bound excitons is elucidated. It is shown that, the oscillator strength of these transitions is enhanced over the free exciton oscillator strength per molecule of the crystal by the ratio of the volume of the system divided by the volume of the crystal unit cell. An expression for the free exciton oscillator strength is obtained that can be used to describe the AC Stark shift of an excitonic resonance and also its saturation behavior.","PeriodicalId":208307,"journal":{"name":"Nonlinear Optical Properties of Materials","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Oscillator Strength, Dephasing and Stark Shift of Free and Three-Dimension Confined Excitons\",\"authors\":\"M. Dagenais\",\"doi\":\"10.1364/nlopm.1988.tua4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The concept of giant oscillator strength for both free and bound excitons is elucidated. It is shown that, the oscillator strength of these transitions is enhanced over the free exciton oscillator strength per molecule of the crystal by the ratio of the volume of the system divided by the volume of the crystal unit cell. An expression for the free exciton oscillator strength is obtained that can be used to describe the AC Stark shift of an excitonic resonance and also its saturation behavior.\",\"PeriodicalId\":208307,\"journal\":{\"name\":\"Nonlinear Optical Properties of Materials\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nonlinear Optical Properties of Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1364/nlopm.1988.tua4\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nonlinear Optical Properties of Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/nlopm.1988.tua4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Oscillator Strength, Dephasing and Stark Shift of Free and Three-Dimension Confined Excitons
The concept of giant oscillator strength for both free and bound excitons is elucidated. It is shown that, the oscillator strength of these transitions is enhanced over the free exciton oscillator strength per molecule of the crystal by the ratio of the volume of the system divided by the volume of the crystal unit cell. An expression for the free exciton oscillator strength is obtained that can be used to describe the AC Stark shift of an excitonic resonance and also its saturation behavior.
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