Dynamics of short pulses and phase matched second harmonic generation in negative index materials

Michael Scalora; Giuseppe D'Aguanno; Mark Bloemer; Marco Centini; Domenico De Ceglia; Nadia Mattiucci; Yuri S. Kivshar

doi:10.1364/OE.14.004746

Dynamics of short pulses and phase matched second harmonic generation in negative index materials

Michael Scalora^*, Giuseppe D'Aguanno, Mark Bloemer, Marco Centini, Domenico De Ceglia, Nadia Mattiucci, Yuri S. Kivshar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

We study pulsed second harmonic generation in metamaterials under conditions of significant absorption. Tuning the pump in the negative index range, a second harmonic signal is generated in the positive index region, such that the respective indices of refraction have the same magnitudes but opposite signs. This insures that a forward-propagating pump is exactly phase matched to the backward-propagating second harmonic signal. Using peak intensities of ∼500 MW/cm², assuming χ⁽²⁾∼80pm/V, we predict conversion efficiencies of 12% and 0.2% for attenuation lengths of 50 and 5μm, respectively.

Original language	English
Pages (from-to)	4746-4756
Number of pages	11
Journal	Optics Express
Volume	14
Issue number	11
DOIs	https://doi.org/10.1364/OE.14.004746
Publication status	Published - May 2006

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AU - Scalora, Michael

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AU - Centini, Marco

AU - De Ceglia, Domenico

AU - Mattiucci, Nadia

AU - Kivshar, Yuri S.

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AB - We study pulsed second harmonic generation in metamaterials under conditions of significant absorption. Tuning the pump in the negative index range, a second harmonic signal is generated in the positive index region, such that the respective indices of refraction have the same magnitudes but opposite signs. This insures that a forward-propagating pump is exactly phase matched to the backward-propagating second harmonic signal. Using peak intensities of ∼500 MW/cm2, assuming χ(2)∼80pm/V, we predict conversion efficiencies of 12% and 0.2% for attenuation lengths of 50 and 5μm, respectively.

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Dynamics of short pulses and phase matched second harmonic generation in negative index materials

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