Abstract
Nonlinear metamaterials have been predicted to support new and exciting domains in the manipulation of light, including novel phase-matching schemes for wave mixing. Most notable is the so-called nonlinear-optical mirror, in which a nonlinear negative-index medium emits the generated frequency towards the source of the pump. In this Letter, we experimentally demonstrate the nonlinear-optical mirror effect in a bulk negative-index nonlinear metamaterial, along with two other novel phase-matching configurations, utilizing periodic poling to switch between the three phase-matching domains.
- Received 31 May 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.063902
© 2011 American Physical Society
Viewpoint
ViewpointLight doubles back
Published 1 August 2011
Metamaterials can act as nonlinear mirrors, reflecting back an incoming electromagnetic wave at twice the frequency.
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