Nonlinear optical and optical limiting properties of individual single-walled carbon nanotubes

被引：54
|
作者：
Wang, J. [1 ]
Blau, W. J. [1 ]
机构：
[1] Univ Dublin Trinity Coll, Sch Phys, Dublin 2, Ireland
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 91卷 / 3-4期
关键词：
D O I：
10.1007/s00340-008-2999-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A large number of individual single-walled carbon nanotubes (SWNTs) were obtained by dilution of nanotube dispersions in N-methyl-2-pyrrolidone (NMP). Up to 70% individual SWNTs are contained in the NMP dispersions with concentrations of less than 4.0x10(-3) mg/mL. The nonlinear optical and optical limiting properties of SWNT dispersions were studied by using the Z-scan technique at 532 nm. As the concentration of SWNTs is increased, the nonlinear extinction (NLE) and optical limiting effects improve significantly, while the limiting thresholds decrease gradually. The individual SWNTs show similar NLE effect to zinc phthalocyanine nanoparticles, while also exhibiting larger NLE coefficients than Mo6S4.5I4.5 nanowires.
引用
收藏
页码：521 / 524
页数：4
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