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Ultrafast linear dichroism-like absorption dynamics in graphene grown by chemical vapor deposition
K. Chen; H. H. Li; L. P. Ma; W. C. Ren; J. Y. Zhou; H. M. Cheng; T. S. Lai
2014
Source PublicationJournal of Applied Physics
ISSN0021-8979
Volume115Issue:20
AbstractA transient linear dichroism-like absorption effect is found in the differential transmission dynamics of graphene. Distinctive ultrafast dynamics are observed, respectively, for parallel and perpendicular linearly polarized pump-probe geometries. Pump-polarization dependence of the ultrafast dynamics is observed obviously. It is found that the ultrafast dynamics excited by any oriented linear polarization pump can be fit well with a linear combination of two ultrafast dynamics, respectively, observed in parallel and perpendicular linearly polarized pump-probe geometries, which is a typical character of linear dichroic absorption effect and implies that a transient linear dichroism-like absorption occurs in graphene. However, the mechanism of the transient linear dichroism-like effect cannot be explained yet within the present framework of theory on graphene. Further theoretical explorations from theoretical physicists are expected. (C) 2014 AIP Publishing LLC.
description.department[chen, ke ; li, huihui ; zhou, jian-ying ; lai, tianshu] sun yat sen univ, dept phys, state key lab optoelect mat & technol, guangzhou 510275, guangdong, peoples r china. [ma, lai-peng ; ren, wencai ; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; lai, ts (reprint author), sun yat sen univ, dept phys, state key lab optoelect mat & technol, guangzhou 510275, guangdong, peoples r china. ; stslts@mail.sysu.edu.cn
KeywordMicroscopy
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73194
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
K. Chen,H. H. Li,L. P. Ma,et al. Ultrafast linear dichroism-like absorption dynamics in graphene grown by chemical vapor deposition[J]. Journal of Applied Physics,2014,115(20).
APA K. Chen.,H. H. Li.,L. P. Ma.,W. C. Ren.,J. Y. Zhou.,...&T. S. Lai.(2014).Ultrafast linear dichroism-like absorption dynamics in graphene grown by chemical vapor deposition.Journal of Applied Physics,115(20).
MLA K. Chen,et al."Ultrafast linear dichroism-like absorption dynamics in graphene grown by chemical vapor deposition".Journal of Applied Physics 115.20(2014).
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