Measurement of the optical Stark effect in semiconducting carbon nanotubes

被引：26

作者：

Song, Daohua ^{[1
,2
]}

Wang, Feng ^{[1
,2
]}

Dukovic, Gordana ^{[3
]}

Zheng, Ming ^{[4
]}

Semke, E. D. ^{[4
]}

Brus, Louis E. ^{[3
]}

Heinz, Tony F. ^{[1
,2
]}

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA

[3] Columbia Univ, Dept Chem, New York, NY 10027 USA

[4] DuPont Co Inc, Cent Res & Dev, Wilmington, DE 19880 USA

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 96卷 / 02期

关键词：

EXCITON; TRANSITIONS; DEPENDENCE; ABSORPTION; SHIFT;

D O I：

10.1007/s00339-009-5202-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A strong optical Stark effect has been observed in (6,5) semiconducting single-walled carbon nanotubes by femtosecond pump-probe spectroscopy. The response is characterized by an instantaneous blueshift of the excitonic resonance upon application of pump radiation at photon energy well below the band gap. The large Stark effect is attributed to the enhanced Coulomb interactions present in these one-dimensional materials.

引用

页码：283 / 287

页数：5

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