15 February 2018 A birefringent phase-matching method in multilayered hyperbolic metamaterials
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Multilayered hyperbolic metamaterials (MHM) is proposed to create phase matching of fundamental-frequency (FF) and third-harmonic (TH) field components with a unique dispersion provided by the engineered MHM structure for third-harmonic generation in ultra-short pulse regime. In this work, we analytically study the ensuing possibilities and demonstrate that a birefringent phase-matching can be alternatively achieved with a wide range of involved material parameters and optimal engineering of MHM structure. When the phase-matched conditions is satisfied by birefringent phase-matching method, the growth rate of the TH intensity generating as a function of the nonlinear-optical interaction length to be obviously increased. This method opens new ways of improving the conversion efficiency of frequency tripling regardless of the coherence length in the bulk of a nonlinear material.
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Surawut Wicharn, Surawut Wicharn, Suwan Plaipichit, Suwan Plaipichit, Thitiya Seesan, Thitiya Seesan, Prathan Buranasiri, Prathan Buranasiri, } "A birefringent phase-matching method in multilayered hyperbolic metamaterials", Proc. SPIE 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII, 105161M (15 February 2018); doi: 10.1117/12.2292534; https://doi.org/10.1117/12.2292534


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