Second-harmonic generation from complementary split-ring resonators

N. Feth, S. Linden, M. W. Klein, M. Decker, F. B.P. Niesler, Y. Zeng, W. Hoyer, J. Liu, S. W. Koch, J. V. Moloney, M. Wegener

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

We present experiments on second-harmonic generation from arrays of magnetic split-ring resonators and arrays of complementary split-ring resonators. In both cases, the fundamental resonance is excited by the incident femtosecond laser pulses under normal incidence, leading to comparably strong second-harmonic signals. These findings are discussed in terms of Babinet's principle and in terms of a recently developed microscopic classical theory that leads to good agreement regarding the relative and the absolute nonlinear signal strengths. The hydrodynamic convective contribution is found to be the dominant source of second-harmonic generation - in contrast to a previous assignment [Science 313, 502 (2006)].

Original languageEnglish (US)
Pages (from-to)1975-1977
Number of pages3
JournalOptics letters
Volume33
Issue number17
DOIs
StatePublished - Sep 1 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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