Spectral analysis of enhanced third harmonic generation from plasmonic excitations

Guixin LI, T. Li, H. Liu, K. F. Li, S. M. Wang, S. N. Zhu, Kok Wai CHEAH*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We experimentally achieved enhanced third harmonic generation (THG) from hole-array in gold film. The surface plasmon polarition excitations, considered as the major contribution to this THG enhancement, are elaborately studied by a spectrum-resolved femto-second laser system. The momentum matching conditions between the fundamental and harmonic waves are well established, giving results of a series of clear THG beam spots with respect to different excitation wavelengths. This efficient THG beaming from the pure metallic structure would considerably broaden the research in the field of nonlinear plasmonics.

Original languageEnglish
Article number261909
JournalApplied Physics Letters
Volume98
Issue number26
DOIs
Publication statusPublished - 27 Jun 2011

Scopus Subject Areas

  • Physics and Astronomy (miscellaneous)

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