Ultrafast Optical Modulation of Harmonic Generation in Two-Dimensional Materials

Cheng，Yang1; Hong，Hao1; Zhao，Hui2; Wu，Chunchun1,3; Pan，Yu1; Liu，Can1,5; Zuo，Yonggang1,2; Zhang，Zhihong4,5; Xie，Jin1; Wang，Jinhuan1; Yu，Dapeng6; Ye，Yu1; Meng，Sheng2; Liu，Kaihui1,4

2020

10.1021/acs.nanolett.0c02972

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

The modulation of optical harmonic generation in two-dimensional (2D) materials is of paramount importance in nanophotonic and nano-optoelectronic devices for their applications in optical switching and communication. However, an effective route with ultrafast modulation speed, ultrahigh modulation depth, and broad operation wavelength range is awaiting a full exploration. Here, we report that an optical pump can dynamically modulate the third harmonic generation (THG) of a graphene monolayer with a relative modulation depth above 90% at a time scale of 2.5 ps for a broad frequency ranging from near-infrared to ultraviolet. Our observation, together with the real-time, time-dependent density functional theory (TDDFT) simulations, reveals that this modulation process stems from nonlinear dynamics of the photoexcited carriers in graphene. The superior performance of the nonlinear all-optical modulator based on 2D materials paves the way for its potential applications including nanolasers and optical communication circuits.

nonlinear optics real-time TDDFT simulations time-resolved THG two-dimensional materials

SCI ; EI

英语

NI论文

其他

Beijing Natural Science Foundation[JQ19004] ; Beijing Excellent Talents Training Support[2017000026833ZK11] ; National Natural Science Foundation of China[51991340][51991342] ; National Key R&D Program of China[2016YFA0300903][2016YFA0300804] ; Key R&D Program of Guangdong Province[2020B010189001][2019B010931001][2018B010109009][2018B030327001] ; Beijing Municipal Science & Technology Commission[Z191100007219005] ; Beijing Graphene Innovation Program[Z181100004818003] ; Bureau of Industry and Information Technology of Shenzhen (Graphene platform)[201901161512] ; Guangdong Innovative and Entrepreneuri a l Research Team Program[2016ZT06D348] ; Science, Technology and Innovat ion Commission of Shenzhen Municipality[KYTDPT20181011104202253]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000592495700034

AMER CHEMICAL SOC

20204609484493

Light modulators ; Optical pumping ; Infrared devices ; Optical signal processing ; Harmonic analysis ; Optoelectronic devices ; Graphene ; Nonlinear optics ; Light modulation ; Optical communication

Optical Communication Systems:717.1 ; Light/Optics:741.1 ; Nonlinear Optics:741.1.1 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Numerical Methods:921.6

MATERIALS SCIENCE

2-s2.0-85095847067

Scopus

1.State Key Laboratory for Mesoscopic Physics,Academy for Advanced Interdisciplinary Studies,School of Physics,Peking University,Beijing,100871,China
2.Institute of Physics,Chinese Academy of Sciences,Beijing,100190,China
3.State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu,610054,China
4.International Center for Quantum Materials,Collaborative Innovation Center of Quantum Matter,Peking University,Beijing,100871,China
5.Physical Science Laboratory,Huairou National Comprehensive Science Center,Beijing,101400,China
6.Shenzhen Institute for Quantum Science and Engineering and Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China

Cheng，Yang,Hong，Hao,Zhao，Hui,et al. Ultrafast Optical Modulation of Harmonic Generation in Two-Dimensional Materials[J]. NANO LETTERS,2020,20(11):8053-8058.

Cheng，Yang.,Hong，Hao.,Zhao，Hui.,Wu，Chunchun.,Pan，Yu.,...&Liu，Kaihui.(2020).Ultrafast Optical Modulation of Harmonic Generation in Two-Dimensional Materials.NANO LETTERS,20(11),8053-8058.

Cheng，Yang,et al."Ultrafast Optical Modulation of Harmonic Generation in Two-Dimensional Materials".NANO LETTERS 20.11(2020):8053-8058.