19 February 2014 Efficient harmonic generation in double-near-zero-permittivity slabs
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Second and third harmonic generation are dramatically enhanced in slabs that simultaneously exhibit near-zeropermittivity for the pump and harmonic frequencies. The boost of the local field, together with the vanishing value of the refractive indices can deplete the pump for irradiance values of 1kW/cm2.
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M. A. Vincenti, M. A. Vincenti, D. de Ceglia, D. de Ceglia, J. W. Haus, J. W. Haus, M. Scalora, M. Scalora, "Efficient harmonic generation in double-near-zero-permittivity slabs", Proc. SPIE 8994, Photonic and Phononic Properties of Engineered Nanostructures IV, 89941U (19 February 2014); doi: 10.1117/12.2038299; https://doi.org/10.1117/12.2038299

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