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Effects of spectral shift on ultrashort pulse propagation in AZO/ZnO multilayered metamaterials at epsilon-near-zero

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Abstract

Numerical FDTD study of ultrashort (100 fs) pulse propagation shows strong pulse shaping for central frequencies smaller than the epsilon-near-zero (ENZ) point, and soliton-like propagation (up to 500 nm) for central frequencies larger than ENZ.

© 2018 The Author(s)

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