Enhanced terahertz third-harmonic generation by bound states in the continuum in graphene grating-like metamaterial

被引：6

作者：

Wang, Baoku ^{[1
]}

Liu, Jing ^{[1
]}

Cui, Jinhui ^{[1
]}

Liu, Jialin ^{[1
]}

Tian, Fengjun ^{[1
]}

Sun, Weimin ^{[1
]}

Li, Li ^{[1
,2
]}

机构：

[1] Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ, Harbin, Peoples R China

[2] Harbin Inst Technol, Sch Phys, Harbin, Peoples R China

来源：

FRONTIERS IN PHYSICS | 2023年 / 11卷

关键词：

terahertz; third-harmonic generation; bound states in the continuum; graphene; metamaterial; 3RD HARMONIC-GENERATION; METASURFACES; RESONANCE; METALENS;

D O I：

10.3389/fphy.2023.1135211

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Non-linear metamaterials hold great promise for enhanced terahertz harmonic generation. Here, we numerically investigate enhanced terahertz third-harmonic generation (THG) by exploiting the symmetry-protected bound states in the continuum (BICs) in graphene grating-like metamaterial. By symmetry breaking of metamaterials, BICs transform into quasi-BICs. The high Q-factor and strong localized field enhancement is achieved at quasi-BICs, leading to a boosted THG process with low incident intensity of fundamental frequency. The THG conversion efficiency reaches 3.1% at an incident intensity of 100 kW/cm(2). The remarkably enhanced non-linear optical process in the proposed non-linear metamaterial constitutes an outstanding platform for on-chip terahertz non-linear conversion applications.

引用

页数：7

共 48 条

[1] Spectral and temporal evidence o robust photonic bound states in the continuum on terahertz metasurfaces [J].

Abujetas, Diego R. ;

van Hoof, Niels ;

ter Huurne, Stan ;

Rivas, Jaime Gomez ;

Sanchez-Gil, Jose A. .

OPTICA, 2019, 6 (08) :996-1001

[2] A dynamically reconfigurable Fano metamaterial through graphene tuning for switching and sensing applications [J].

Amin, M. ;

Farhat, M. ;

Bagci, H. .

SCIENTIFIC REPORTS, 2013, 3

[3] Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes [J].

Berry, C. W. ;

Wang, N. ;

Hashemi, M. R. ;

Unlu, M. ;

Jarrahi, M. .

NATURE COMMUNICATIONS, 2013, 4

[4] Rigorous calculation of nonlinear parameters in graphene-comprising waveguides [J].

Chatzidimitriou, Dimitrios ;

Pitilakis, Alexandros ;

Kriezis, Emmanouil E. .

JOURNAL OF APPLIED PHYSICS, 2015, 118 (02)

[5] Intrinsic and extrinsic performance limits of graphene devices on SiO2 [J].

Chen, Jian-Hao ;

Jang, Chaun ;

Xiao, Shudong ;

Ishigami, Masa ;

Fuhrer, Michael S. .

NATURE NANOTECHNOLOGY, 2008, 3 (04) :206-209

[6] Flatland plasmonics and nanophotonics based on graphene and beyond [J].

Chen, Pai-Yen ;

Argyropoulos, Christos ;

Farhat, Mohamed ;

Gomez-Diaz, J. Sebastian .

NANOPHOTONICS, 2017, 6 (06) :1239-1262

[7] Third order optical nonlinearity of graphene [J].

Cheng, J. L. ;

Vermeulen, N. ;

Sipe, J. E. .

NEW JOURNAL OF PHYSICS, 2014, 16

[8] Grating-Graphene Metamaterial as a Platform for Terahertz Nonlinear Photonics [J].

Deinert, Jan-Christoph ;

Alcaraz Iranzo, David ;

Perez, Raul ;

Jia, Xiaoyu ;

Hafez, Hassan A. ;

Ilyakov, Igor ;

Awari, Nilesh ;

Chen, Min ;

Bawatna, Mohammed ;

Ponomaryov, Alexey N. ;

Germanskiy, Semyon ;

Bonn, Mischa ;

Koppens, Frank H. L. ;

Turchinovich, Dmitry ;

Gensch, Michael ;

Kovalev, Sergey ;

Tielrooij, Klaas-Jan .

ACS NANO, 2021, 15 (01) :1145-1154

[9] Controlling Electron-Phonon Interactions in Graphene at Ultrahigh Carrier Densities [J].

Efetov, Dmitri K. ;

Kim, Philip .

PHYSICAL REVIEW LETTERS, 2010, 105 (25)

[10] Dynamically tunable bound states in the continuum supported by asymmetric Fabry-Perot resonance [J].

Gao, Enduo ;

Li, Hongjian ;

Liu, Chao ;

Ruan, Banxian ;

Li, Min ;

Zhang, Baihui ;

Zhang, Zhenbin .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2022, 24 (34) :20125-20129

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