探测石墨烯中电子和空穴的超快动力学

2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science Pub Date : 2008-05-04 DOI:10.1109/CLEO.2008.4551069

J. Dawlaty, S. Shivaraman, M. Chandrashekhar, F. Rana, M. Spencer

{"title":"探测石墨烯中电子和空穴的超快动力学","authors":"J. Dawlaty, S. Shivaraman, M. Chandrashekhar, F. Rana, M. Spencer","doi":"10.1109/CLEO.2008.4551069","DOIUrl":null,"url":null,"abstract":"Using pump-probe techniques, we study the ultrafast relaxation dynamics of photoexcited carriers in graphene. We find an initial fast relaxation transient (70-120 fs), followed by a slower relaxation process (0.4-1.7 ps). We relate the measured time scales to carrier-carrier and carrier-phonon intraband and interband scattering processes and also to crystal disorder in the material.","PeriodicalId":6382,"journal":{"name":"2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science","volume":"26 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2008-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Probing ultrafast dynamics of electrons and holes in graphene\",\"authors\":\"J. Dawlaty, S. Shivaraman, M. Chandrashekhar, F. Rana, M. Spencer\",\"doi\":\"10.1109/CLEO.2008.4551069\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Using pump-probe techniques, we study the ultrafast relaxation dynamics of photoexcited carriers in graphene. We find an initial fast relaxation transient (70-120 fs), followed by a slower relaxation process (0.4-1.7 ps). We relate the measured time scales to carrier-carrier and carrier-phonon intraband and interband scattering processes and also to crystal disorder in the material.\",\"PeriodicalId\":6382,\"journal\":{\"name\":\"2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science\",\"volume\":\"26 1\",\"pages\":\"1-2\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-05-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CLEO.2008.4551069\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CLEO.2008.4551069","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

利用泵浦探针技术，研究了石墨烯中光激发载流子的超快弛豫动力学。我们发现了一个初始的快速弛豫瞬态(70- 120fs)，随后是一个较慢的弛豫过程(0.4-1.7 ps)。我们将测量的时间尺度与载流子-载流子和载流子-声子的带内和带间散射过程以及材料中的晶体无序性联系起来。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Probing ultrafast dynamics of electrons and holes in graphene

Using pump-probe techniques, we study the ultrafast relaxation dynamics of photoexcited carriers in graphene. We find an initial fast relaxation transient (70-120 fs), followed by a slower relaxation process (0.4-1.7 ps). We relate the measured time scales to carrier-carrier and carrier-phonon intraband and interband scattering processes and also to crystal disorder in the material.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science

自引率

0.00%

发文量