Third harmonic generation graphene sheet

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We observe optical third harmonic generation from graphene and few-layer graphite flakes produced by exfoliation. The emission scales with the cube of the intensity of the incident near-infrared femtosecond pulses and has a wavelength that is one-third of the incident wavelength, both consistent with third harmonic generation. We observe optical third harmonic generation from graphene and few-layer graphite flakes produced by exfoliation. The emission scales with the cube of the intensity of the incident near-infrared femtosecond pulses and has a wavelength that is one-third of the incident wavelength, both consistent with third harmonic generation. We observe optical third harmonic generation from graphene and few-layer graphite flakes produced by exfoliation. The emission scales with the cube of the intensity of the incident near-infrared femtosecond pulses and has a wavelength that is one-third of the incident wavelength, both consistent with third harmonic generation. generation [14]. This work focuses on third harmonic generation, which is described with a third order susceptibility (3).Mikhailovpredictedthat the third order susceptibility of graphene is large, especially in compari-son to dielectric materials [15][16]. Meanwhile, third harmonic generation 1 At room temperature, the Kerr nonlinear refractive index and the harmonic generation susceptibility are found to be n2 = 10−11 ∼ 10−8 m2W−1 and χ(3) = 10−14 ∼ 10−8 m2V−2, respectively, in the few terahertz frequency regimes, which is comparable to graphene and orders of magnitudes stronger than many nonlinear crystals. We demonstrate a 117-fold enhancement in the third harmonic generation from graphene due to the integration of a graphene layer with a resonant cavity. This rather large enhancement occurs as the cavity is resonant for both the fundamental field and the third harmonic field.
 

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PHYSICAL REVIEW B 92, 155410 (2015) Cascaded third-harmonic generation in hybrid graphene-semiconductor waveguides Daria A. Smirnova 1,2 and Alexander S. Solntsev 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia May 21, 2018 · Graphene with massless Dirac fermions can have exceptionally strong third-order optical nonlinearities. Yet reported values of nonlinear optical susceptibilities for third-harmonic generation (THG ... Third Harmonic THz Generation from Graphene in a Parallel-Plate Waveguide Parvin Navaeipour and Marc M. Dignam Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada Ibraheem Al-Naib Biomedical Engineering Department, College of Engineering, University of Dammam, Dammam 31441, Saudi Arabia The scattering matrix theory has been developed to calculate the third-order nonlinear effect in sphere-graphene-slab structures. By designing structural parameters, we have demonstrated that the incident electromagnetic wave can be well confined in the graphene in these structures due to the formation of a bound state in the continuum (BIC) of radiation modes. May 29, 2018 · Graphene Flagship researchers have shown for the first time gate tunable third harmonic generation in graphene. This research, led by Graphene Flagship Partner University of Cambridge, in Collaboration with Politecnico di Milano and IIT-Istituto Italiano di Tecnologia in Genova and published in Nature Nanotechnology, could enable on-chip ... Third harmonic generation in graphene and few-layer graphite films. Physical Review B 2013, 87 DOI: 10.1103/PhysRevB.87.121406. Li Cao, Sushant Sahu, Parambath Anilkumar, Chang Yi Kong, Ya-Ping Sun. Linear and nonlinear optical properties of modified graphene-based materials. MRS Bulletin 2012, 37 (12) , 1283-1289. DOI: 10.1557/mrs.2012.178. At room temperature, the Kerr nonlinear refractive index and the harmonic generation susceptibility are found to be n2 = 10−11 ∼ 10−8 m2W−1 and χ(3) = 10−14 ∼ 10−8 m2V−2, respectively, in the few terahertz frequency regimes, which is comparable to graphene and orders of magnitudes stronger than many nonlinear crystals. Abstract: In this paper, a general recipe is proposed to design an efficient graphene-integrated plasmonic structure for third harmonic generation. Specifically, the design procedure for an integrated graphene-based ultraviolet light generator is presented.
 

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To alleviate this severe limitation, we propose new designs of ultrathin nonlinear metasurfaces composed of patterned graphene micro-ribbons to significantly enhance third harmonic generation (THG) at far-infrared and terahertz (THz) frequencies. Second-harmonic generation by a graphene nanoparticle Daria A. Smirnova, 1Ilya V. Shadrivov, Andrey E. Miroshnichenko,1 Alexander I. Smirnov,2,3 and Yuri S. Kivshar 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia Second-harmonic generation by a graphene nanoparticle Daria A. Smirnova, 1Ilya V. Shadrivov, Andrey E. Miroshnichenko,1 Alexander I. Smirnov,2,3 and Yuri S. Kivshar 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia We observe optical third harmonic generation from graphene and few-layer graphite flakes produced by exfoliation. The emission scales with the cube of the intensity of the incident near-infrared femtosecond pulses and has a wavelength that is one-third of the incident wavelength, both consistent with third harmonic generation.

We observe optical third harmonic generation from graphene and few-layer graphite flakes produced by exfoliation. The emission scales with the cube of the intensity of the incident near-infrared femtosecond pulses and has a wavelength that is one-third of the incident wavelength, both consistent with third harmonic generation. Electrical control of third harmonic generation (THG) can be obtained in single-layer graphene. In THG three low-frequency photons (shown as red) sum to generate one high-frequency photon (shown as blue). (Credit: Giancarlo Soavi, University of Cambridge) Optical harmonic generation occurs when high ... Oct 25, 2018 · Benefiting from the large third-order nonlinear susceptibility of graphene and significantly enhanced field intensity of graphene plasmons (GPs), graphene has shown great potentials to enhance plasmonic third-harmonic generation conversion efficiency.

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Third harmonic generation in graphene and few-layer graphite films. Physical Review B 2013, 87 DOI: 10.1103/PhysRevB.87.121406. Li Cao, Sushant Sahu, Parambath Anilkumar, Chang Yi Kong, Ya-Ping Sun. Linear and nonlinear optical properties of modified graphene-based materials. MRS Bulletin 2012, 37 (12) , 1283-1289. DOI: 10.1557/mrs.2012.178. Electrical control of third harmonic generation (THG) can be obtained in single-layer graphene. In THG three low-frequency photons (shown as red) sum to generate one high-frequency photon (shown as blue). (Credit: Giancarlo Soavi, University of Cambridge) Optical harmonic generation occurs when high ... May 21, 2018 · "Our work shows that the third harmonic generation efficiency in graphene can be increased by over 10 times by tuning an applied electric field," explains Giancarlo Soavi, lead author of the paper ...