{"title":"超快x射线衍射和x射线吸收光谱","authors":"C. Rose-Petruck","doi":"10.1109/CLEOE.2000.910174","DOIUrl":null,"url":null,"abstract":"Summary form only given. Recently developed ultrafast laser-driven X-ray sources enable the observation of atomic motions in crystals and in solutions on the timescale of chemical bond formation and breakage. Using such a laboratory-based X-ray source the propagation of coherent phonon wave packets through GaAs(111) crystals after photo excitation has been imaged by ultrafast X-ray difraction. While ultrafast x-ray diffraction measures the structural dynamics of crystals, ultrafast extended x-ray absorption line structure (UEXAFS) can, in principle, measure the structural dynamics of atoms during a chemical process in solution.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Ultrafast X-ray diffraction and X-ray absorption spectroscopy\",\"authors\":\"C. Rose-Petruck\",\"doi\":\"10.1109/CLEOE.2000.910174\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Summary form only given. Recently developed ultrafast laser-driven X-ray sources enable the observation of atomic motions in crystals and in solutions on the timescale of chemical bond formation and breakage. Using such a laboratory-based X-ray source the propagation of coherent phonon wave packets through GaAs(111) crystals after photo excitation has been imaged by ultrafast X-ray difraction. While ultrafast x-ray diffraction measures the structural dynamics of crystals, ultrafast extended x-ray absorption line structure (UEXAFS) can, in principle, measure the structural dynamics of atoms during a chemical process in solution.\",\"PeriodicalId\":250878,\"journal\":{\"name\":\"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)\",\"volume\":\"24 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CLEOE.2000.910174\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CLEOE.2000.910174","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ultrafast X-ray diffraction and X-ray absorption spectroscopy
Summary form only given. Recently developed ultrafast laser-driven X-ray sources enable the observation of atomic motions in crystals and in solutions on the timescale of chemical bond formation and breakage. Using such a laboratory-based X-ray source the propagation of coherent phonon wave packets through GaAs(111) crystals after photo excitation has been imaged by ultrafast X-ray difraction. While ultrafast x-ray diffraction measures the structural dynamics of crystals, ultrafast extended x-ray absorption line structure (UEXAFS) can, in principle, measure the structural dynamics of atoms during a chemical process in solution.
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