title: Controlling the second harmonic in a phase-matched negative-index metamaterial.
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.
authors: Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, North Carolina 27708, USA.
authors: Alec
authors: A
authors: Rose
authors: Da
authors: D
authors: Huang
authors: David R
authors: DR
authors: Smith