Enhancement of lattice dynamics by an azimuthal surface plasmon on the femtosecond time scale in multi-walled carbon nanotubes

Zheng，Dingguo1,2; Huang，Siyuan1,2; Zhu，Chunhui1; Li，Zhongwen1; Zhang，Yongzhao1,2; Yang，Dong1; Tian，Huanfang1; Li，Jun1; Yang，Huaixin1,2,3; Li，Jianqi1,2,3,4

2022

10.1039/d2nr01272c

Nanoscale   影响因子和分区

2040-3364

2040-3372

Plasmon-enhanced light-matter interactions have been widely investigated in the past decades. Here, we report surface plasmon-enhanced structural dynamics in multi-walled carbon nanotubes. The optical polarization dependent dynamic properties of multi-walled carbon nanotubes are investigated using ultrafast transmission electron microscopy. Lattice contractions in the femtosecond time regime are observed upon excitation of the azimuthal plasmon by light polarized perpendicular to the tubular axis. The polarization dependence of the plasmon near field was examined using photon-induced near-field electron microscopy. The lattice changes resulting from the azimuthal plasmon enhance ultrafast alterations in both localized evanescent fields and the collective charge excitation, which play critical roles governing the light-matter interaction. These results suggest that the ultrafast responses of lattice degrees of freedom in nanomaterials could be essential for understanding the mechanism of surface plasmon enhanced effects.

SCI ; EI

英语

通讯

WOS:000823776600001

20223012412205

Crystal lattices ; Degrees of freedom (mechanics) ; Evanescent fields ; High resolution transmission electron microscopy ; Light polarization ; Multiwalled carbon nanotubes (MWCN) ; Structural dynamics

Structural Design:408 ; Electricity and Magnetism:701 ; Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Mechanics:931.1 ; Plasma Physics:932.3 ; Crystalline Solids:933.1 ; Crystal Lattice:933.1.1

2-s2.0-85134668439

Scopus

1.Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing,100190,China
2.School of Physical Sciences,University of Chinese Academy of Science,Beijing,100049,China
3.Songshan Lake Materials Laboratory,Dongguan,Guangdong,523808,China
4.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Zheng，Dingguo,Huang，Siyuan,Zhu，Chunhui,et al. Enhancement of lattice dynamics by an azimuthal surface plasmon on the femtosecond time scale in multi-walled carbon nanotubes[J]. Nanoscale,2022,14:10477-10482.

Zheng，Dingguo.,Huang，Siyuan.,Zhu，Chunhui.,Li，Zhongwen.,Zhang，Yongzhao.,...&Li，Jianqi.(2022).Enhancement of lattice dynamics by an azimuthal surface plasmon on the femtosecond time scale in multi-walled carbon nanotubes.Nanoscale,14,10477-10482.

Zheng，Dingguo,et al."Enhancement of lattice dynamics by an azimuthal surface plasmon on the femtosecond time scale in multi-walled carbon nanotubes".Nanoscale 14(2022):10477-10482.