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Multi-Photon Absorption and Second Harmonic Generation Saturation in GaAs-Filled Nanoplasmonic Arrays

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Abstract

Second harmonic generation (SHG) based on the enhancement of the local fields of nanoscale periodic, GaAs-filled holes in a metal film is presented. The highest SHG conversion efficiency achieved was 10-5 at 8 GW/cm2 input peak power, limited by multi-photon absorption and the resultant free-carrier absorption.

© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC

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