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5 March 2018 Third-harmonic generation in tunable nonlinear hyperbolic metamaterial
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Proceedings Volume 10714, Third International Conference on Photonics Solutions (ICPS2017); 107140H (2018)
Event: Third International Conference on Photonic Solutions, 2017, Pattaya, Thailand
In this research, a third-harmonic generation (THG) in a tunable nonlinear hyperbolic metamaterial (TNHM) has been investigated numerically. The TNHM is consisted of periodically arranging of multilayered graphene layers system for controlled optical properties purpose, and ordinary nonlinear dielectric layer. The possibility of TNHM permittivity dispersion controlled by number of graphene layers and external bias voltage to graphene layers was satisfied, then the structure has created the nearly perfect phase-matching scheme based on epsilon-near-zero (ENZ) behavior of the nonlinear medium. Finally, the optimal designed TNHM structure with sufficient bias voltage have given the forwardand backward-direction TH pulses, which the backward-forward TH intensity ratio is closely unity. The THG conversion efficiencies have been maximized after increasing the pumping level to 800 MW/cm2 . From this study, the optimal designed TNHM can be applied as a bi-directional nonlinear frequency converters in nanophotonic systems.
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Surawut Wicharn and Prathan Buranasiri "Third-harmonic generation in tunable nonlinear hyperbolic metamaterial", Proc. SPIE 10714, Third International Conference on Photonics Solutions (ICPS2017), 107140H (5 March 2018);

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