Tuning the optical nonlinearity of graphene

被引：13
|
作者：
Li, Ying [1 ,2 ]
Li, Hui [1 ,2 ]
Wu, Shiwei [1 ,2 ,3 ,4 ]
Liu, Wei-Tao [1 ,2 ]
机构：
[1] Fudan Univ, Key Lab Micro & Nano Photon Struct MOE, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[3] Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China
[4] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China
来源：
JOURNAL OF CHEMICAL PHYSICS | 2020年 / 153卷 / 08期
基金：
中国国家自然科学基金;
关键词：
MASSLESS DIRAC FERMIONS; 2ND-HARMONIC GENERATION; PHASE;
D O I：
10.1063/5.0019563
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：
Tuning of nonlinear optical responses is the essence to many photonics and optoelectronics applications. Due to the low-dimensionality and dispersion of massless Dirac Fermions, the nonlinear optical susceptibilities of graphene can be readily controlled via electrical gating. Based on the quantum interference between multi-photon transition pathways, the tuning mechanism of graphene nonlinearity is intrinsically different from most other systems. The phenomenon enables investigations into some nonlinear optical processes from fundamental regards. It also exhibits appealing features contrasting conventional materials, which can be desirable for novel device applications.
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收藏
页数：7
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