Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene

Seongju Ha; Nam Hun Park; Hyeonkyeong Kim; Jiseon Shin; Jungseok Choi; Sungmin Park; Ji-Yun Moon; Kwanbyung Chae; Jeil Jung; Jae-Hyun Lee; Youngdong Yoo; Ji-Yong Park; Kwang Jun Ahn; Dong-Il Yeom

doi:10.1038/s41377-020-00459-5

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Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene

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- Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene
- Light: Science & Applications Vol. 10, Issue 2, Pages: 176-185(2021)
- Affiliations：
  
  1.Department of Energy Systems Research, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon 16499, Republic of Korea
  2.Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
  3.Department of Physics, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, Republic of Korea
  4.Department of Smart Cities, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, Republic of Korea
  5.Department of Materials Science and Engineering, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon 16499, Republic of Korea
  6.Department of Chemistry, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon 16499, Republic of Korea
  7.Department of Physics, Ajou University, 206 Worldcup-ro, Yeongtonggu, Suwon 16499, Republic of Korea
- Author bio：
  
  Dong-Il Yeom (diyeom@ajou.ac.kr)
- Funds：
- DOI：10.1038/s41377-020-00459-5
  CLC：
- Published：2021，
  
  Published Online：21 January 2021，
  
  Received：11 June 2020，
  
  Revised：14 December 2020，
  
  Accepted：23 December 2020
- Accepted：
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Ha, S. et al. Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene. Light: Science & Applications, 10, 176-185 (2021).
DOI：

Ha, S. et al. Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene. Light: Science & Applications, 10, 176-185 (2021). DOI： 10.1038/s41377-020-00459-5.

摘要

Abstract

Twisted bilayer graphene (tBLG) has received substantial attention in various research fields due to its unconventional physical properties originating from Moiré superlattices. The electronic band structure in tBLG modified by interlayer interactions enables the emergence of low-energy van Hove singularities in the density of states

allowing the observation of intriguing features such as increased optical conductivity and photocurrent at visible or near-infrared wavelengths. Here

we show that the third-order optical nonlinearity can be considerably modified depending on the stacking angle in tBLG. The third-harmonic generation (THG) efficiency is found to significantly increase when the energy gap at the van Hove singularity matches the three-photon resonance of incident light. Further study on electrically tuneable optical nonlinearity reveals that the gate-controlled THG enhancement varies with the twist angle in tBLG

resulting in a THG enhanced up to 60 times compared to neutral monolayer graphene. Our results prove that the twist angle opens up a new way to control and increase the optical nonlinearity of tBLG

suggesting rotation-induced tuneable nonlinear optics in stacked two-dimensional material systems.

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references

Boyd, R. W.Nonlinear Optics. 3rd edn (Academic Press, Inc., Waltham, 2008).

He, G. S.&Liu, S. H.Physics of Nonlinear Optics(World Scientific Co., Singapore, 1999).

Autere, A. et al. Nonlinear optics with 2D layered materials.Adv. Mater.30, 1705963 (2018)..

Yamashita, S. Nonlinear optics in carbon nanotube, graphene, and related 2D materials.APL Photonics4, 034301 (2019)..

Novoselov, K. S. et al. Electric field effect in atomically thin carbon films.Science306, 666-669 (2004)..

Cheng, J. L., Vermeulen, N.&Sipe, J. E. Third order optical nonlinearity of graphene.N. J. Phys.16, 053014 (2014)..

Hong, S. Y. et al. Optical third-harmonic generation in graphene.Phys. Rev. X3, 021014 (2013)..

Säynätjoki, A. et al. Rapid large-area multiphoton microscopy for characterization of graphene.ACS Nano7, 8441-8446 (2013)..

Kumar, N. et al. Third harmonic generation in graphene and few-layer graphite films.Phys. Rev. B87, 121406(R) (2013)..

Yang, H. et al. Layer dependence of third-harmonic generation in thick multilayer graphene.Phys. Rev. Mater.2, 071002(R) (2018)..

Jiang, T. et al. Gate-tunable third-order nonlinear optical response of massless Dirac fermions in graphene.Nat. Photonics12, 430-436 (2018)..

Soavi, G. et al. Broadband, electrically tunable third-harmonic generation in graphene.Nat. Nanotechnol.13, 583-588 (2018)..

Hendry, E. et al. Coherent nonlinear optical response of graphene.Phys. Rev. Lett.105, 097401 (2010)..

Gu, T. et al. Regenerative oscillation and four-wave mixing in graphene optoelectronics.Nat. Photonics6, 554-559 (2012)..

Bao, Q. L. et al. Atomic-layer graphene as a saturable absorber for ultrafast pulsed lasers.Adv. Funct. Mater.19, 3077-3083 (2009)..

Park, N. H. et al. Monolayer graphene saturable absorbers with strongly enhanced evanescent-field interaction for ultrafast fiber laser mode-locking.Opt. Express23, 19806-19812 (2015)..

Lee, E. J. et al. Active control of all-fibre graphene devices with electrical gating.Nat. Commun.6, 6851 (2015)..

Li, G. H. et al. Observation of Van Hove singularities in twisted graphene layers.Nat. Phys.6, 109-113 (2010)..

Cao, Y. et al. Unconventional superconductivity in magic-angle graphene superlattices.Nature556, 43-50 (2018)..

Yoo, H. et al. Atomic and electronic reconstruction at the van der Waals interface in twisted bilayer graphene.Nat. Mater.18, 448-453 (2019)..

Cao, Y. et al. Correlated insulator behaviour at half-filling in magic-angle graphene superlattices.Nature556, 80-84 (2018)..

Shi, H. H. et al. Large-area, periodic, and tunable intrinsic pseudo-magnetic fields in low-angle twisted bilayer graphene.Nat. Commun.11, 371 (2020)..

Patel, H. et al. Stacking angle-tunable photoluminescence from interlayer exciton states in twisted bilayer graphene.Nat. Commun.10, 1445 (2019)..

Moon, P.&Koshino, M. Optical absorption in twisted bilayer graphene.Phys. Rev. B87, 205404 (2013)..

Wang, Y. Y. et al. Stacking-dependent optical conductivity of bilayer graphene.ACS Nano4, 4074-4080 (2010)..

Havener, R. W. et al. Hyperspectral imaging of structure and composition in atomically thin heterostructures.Nano Lett.13, 3942-3946 (2013)..

Havener, R. W. et al. Van hove singularities and excitonic effects in the optical conductivity of twisted bilayer graphene.Nano Lett.14, 3353-3357 (2014)..

Yin, J. B. et al. Selectively enhanced photocurrent generation in twisted bilayer graphene with van Hove singularity.Nat. Commun.7, 10699 (2016)..

Havener, R. W. et al. Angle-resolved Raman imaging of interlayer rotations and interactions in twisted bilayer graphene.Nano Lett.12, 3162-3167 (2012)..

Kim, K. et al. Raman spectroscopy study of rotated double-layer graphene: misorientation-angle dependence of electronic structure.Phys. Rev. Lett.108, 246103 (2012)..

Jorio, A.&Cançado, L. G. Raman spectroscopy of twisted bilayer graphene.Solid State Commun.175-176, 3-12 (2013)..

Campos‐Delgado, J. et al. Twisted bi-layer graphene: microscopic rainbows.Small9, 3247-3251 (2013)..

Robinson, J. T. et al. Electronic hybridization of large-area stacked graphene films.ACS Nano7, 637-644 (2013)..

Yeh, C. H. et al. Gating electron-hole asymmetry in twisted bilayer graphene.ACS Nano8, 6962-6969 (2014)..

Lui, C. H. et al. Ultrafast photoluminescence from graphene.Phys. Rev. Lett.105, 127404 (2010)..

Liu, W. T. et al. Nonlinear broadband photoluminescence of graphene induced by femtosecond laser irradiation.Phys. Rev. B82, 081408(R) (2010)..

Alencar, T. V. et al. Twisted bilayer graphene photoluminescence emission peaks at van Hove singularities.J. Phys. : Condens. Matter30, 175302 (2018)..

Huang, D. et al. Gate switching of ultrafast photoluminescence in graphene.Nano Lett.18, 7985-7990 (2018)..

Chung, T. F. et al. Optical phonons in twisted bilayer graphene with gate-induced asymmetric doping.Nano Lett.15, 1203-1210 (2015)..

Yu, K. et al. Gate tunable optical absorption and band structure of twisted bilayer graphene.Phys. Rev. B99, 241405(R) (2019)..

Säynätjoki, A. et al. Ultra-strong nonlinear optical processes and trigonal warping in MoS2layers.Nat. Commun.8, 893 (2017)..

Yang, F. Y. et al. Tunable second harmonic generation in twisted bilayer graphene.Matter3, 1361-1376 (2020)..

Du, L. J., Dai, Y. Y.&Sun, Z. P. Twisting for tunable nonlinear optics.Matter3, 987-988 (2020)..

Chebrolu, N. R., Chittari, B. L.&Jung, J. Flat bands in twisted double bilayer graphene.Phys. Rev. B99, 235417 (2019)..

Stauber, T., San-Jose, P.&Brey, L. Optical conductivity, Drude weight and plasmons in twisted graphene bilayers.N. J. Phys.15, 113050 (2013)..

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