Radiative collective modes in ion-implanted multiwalled carbon nanotubes

被引：0
作者：
Seepujak, A. [1 ]
Bangert, U. [1 ]
Eccles, J. W. [1 ]
Harvey, A. J. [1 ]
van den Berg, J. [2 ]
Reading, M. [2 ]
机构：
[1] Univ Manchester, Dept Mat Sci, Oxford Rd, Manchester M13 9PL, Lancs, England
[2] Univ Salford, Sch Comp Sci & Engn, Salford M5 4WT, Lancs, England
来源：
ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2009 (EMAG 2009) | 2010年 / 241卷
关键词：
EMISSION;
D O I：
10.1088/1742-6596/241/1/012099
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Surface mode fields are strongly confined to a MWCNT surface, representing a conceivable solution for realization of quasi-2D optics. In the present Contribution, MWCNTs are ion implanted with guest ions. Implantation enables engineering of the local dielectric tensor epsilon(k,omega), allowing specific selection of the gamma emission eigenfrequency. C-s-corrected STEM is used to acquire EEL spectra with atomic resolution. Lines are subsequently characterized using EEL spectra simulated using first-principles DFT calculations, utilising the full-potential linearised augmented plane wave formalism. In addition to presenting virtual collective modes, implanted guest ions are seen to introduce waveguide eigensolutions which provide a possible mechanism for light transmission in MWCNTs.
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页数：4
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