Dispersion of the nonlinear optical susceptibility in single-wall carbon nanotubes

被引：0
|
作者：
Margulis, VA
Gaiduk, EA
Tomilin, OB
机构：
[1] Mordovian NP Ogarev State Univ, Dept Phys, Saransk 430000, Russia
[2] Mordovian NP Ogarev State Univ, Dept Chem, Saransk 430000, Russia
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2004年 / 12卷 / 1-2期
关键词：
carbon nanotubes; optical nonlinearity; dispersive behavior; nonlinear suspectibility;
D O I：
10.1081/FST-120027188
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have C calculated the dispersive behavior of the third-order nonlinear susceptibility chi((3)) (-omega(3): omega(1), omega1, -omega(2)) in single-wall carbon nanotubes (SWCNTs) responsible for optical frequency mixing of the form omega(3) = 2omega(1) - omega(2) The dispersive resonance of chi((3)) (- omega(3): omega(1), omega(1), - omega(2) is shown to occur when the frequency omega(3 =) 2omega(1) - omega(2) is generated near the band gap of SWCNTs due to three-wave mixinig. A very sharp peak of A, 3) (-omega(3): omega(1), omega(1), -omega(2)) reaching extremely high values similar to10(-4) esu at the newly generated frequency omega(3) can be observed when not only omega(3) is close to the band gap of the system, but also when the frequencies of incident fields are near such a resonance.
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页码：335 / 339
页数：5
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