Doubly resonant metallic nanostructure for high conversion efficiency of second harmonic generation

Sinjeung Park, Jae Won Hahn, Jae Yong Lee

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The recent discovery of strong nonlinear emission in metallic nanostructures has offered possibilities for realization of functional nano photonic devices. Here, we demonstrate a novel design of a plasmonic nano device for high conversion efficiency of second harmonic generation. A 4 × 4 bowtie aperture array is fabricated to have both plasmonic resonance for local field enhancement of the fundamental wave and Fabry-Pérot resonance for high transmission of second harmonic wave. Combining nano structures for exciting surface plasmon polariton and suppressing higher order diffraction and anti-reflection layer, we achieve a second harmonic conversion efficiency of 1.4×10-8 that is nearly an order of magnitude larger than the results published in recent literatures. We also theoretically analyze evidences of the role of double resonances tuned to the fundamental wave and the second harmonic wave, resulting in the augmentation of second harmonic response approximately an order of magnitude greater than that without the help of the resonance.

Original languageEnglish
Pages (from-to)4856-4870
Number of pages15
JournalOptics Express
Volume20
Issue number5
DOIs
Publication statusPublished - 2012 Feb 27

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harmonic generations
harmonics
augmentation
polaritons
apertures
photonics
diffraction

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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Doubly resonant metallic nanostructure for high conversion efficiency of second harmonic generation. / Park, Sinjeung; Hahn, Jae Won; Lee, Jae Yong.

In: Optics Express, Vol. 20, No. 5, 27.02.2012, p. 4856-4870.

Research output: Contribution to journalArticle

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