Switching freely between superluminal & subluminal light propagation in a monolayer MoS 2 nanoresonator

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期刊论文

作者：

Li, Jian-Bo*;Xiao, Si;Liang, Shan;He, Meng-Dong;Kim, Nam-Chol;...

通讯作者：

Li, Jian-Bo

作者机构：

[Luo, Jian-Hua; He, Meng-Dong; Luo, Yongfeng; Chen, Li-Qun; Li, Jian-Bo] Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Hunan, Peoples R China.

[Xiao, Si] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China.

[Liang, Shan] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China.

[Kim, Nam-Chol] Kim II Sung Univ, Dept Phys, Pyongyang, South Korea.

通讯机构：

[Li, Jian-Bo] C

Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Hunan, Peoples R China.

语种：

英文

关键词：

Carbon nanotubes;Excitons;Layered semiconductors;Molybdenum compounds;Monolayers;Phonons;Yarn;Absorption peaks;Device application;Exciton-phonon couplings;Group velocities;Large dispersion;Optical switching;Orders of magnitude;Propagation of lights;Slow light

期刊：

Optics Express

ISSN：

1094-4087

年：

2017

卷：

期：

页码：

13567-13576

DOI：

10.1364/OE.25.013567

基金类别：

National Natural Science Foundation of China (NSFC) under Grants Nos. 11404410, 11504105 and 11504434; Hunan Provincial Natural Science Foundation of China under Grants Nos. 14JJ3116 and 2015JJ3174; Foundation of Talent Introduction of Central South University of Forestry and Technology under Grant No.104-0260.

机构署名：

本校为第一且通讯机构

院系归属：

理学院

摘要：

We theoretically propose a feasible scheme to advance or slow the propagation of light in a monolayer MoS 2 nanoresonator (NR). The scheme allows one to easily turn on or off the fast (superluminal) and slow (subluminal) light effects and switch freely between fast and slow light propagation by only adjusting the frequency or intensity of the pump field. As the exciton interacts strongly with the phonons in MoS 2 , the slow light effect will appear along with a large dispersion with a very steep negative slope and a sharp absorption peak. Espec...

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Switching freely between superluminal & subluminal light propagation in a monolayer MoS 2 nanoresonator

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