Second-harmonic generation in silicon waveguides strained by silicon nitride.

Abstract

Silicon photonics meets the electronics requirement of increased speed and bandwidth with on-chip optical networks. All-optical data management requires nonlinear silicon photonics. In silicon only third-order optical nonlinearities are present owing to its crystalline inversion symmetry. Introducing a second-order nonlinearity into silicon photonics by… (More)
DOI: 10.1038/nmat3200

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