IEEE Photonics Journal (Jan 2014)

Efficient Third-Harmonic Generation From 2 <formula formulatype="inline"><tex Notation="TeX">$\mu \hbox{m}$</tex></formula> in Asymmetric Plasmonic Slot Waveguide

  • Tianye Huang,
  • Xuguang Shao,
  • Zhifang Wu,
  • Timothy Lee,
  • Tingting Wu,
  • Yunxu Sun,
  • Jing Zhang,
  • Huy Quoc Lam,
  • Gilberto Brambilla,
  • Perry Ping Shum

DOI
https://doi.org/10.1109/JPHOT.2014.2323302
Journal volume & issue
Vol. 6, no. 3
pp. 1 – 7

Abstract

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We propose the asymmetrical plasmonic slot waveguide (APSW) design for third-harmonic generation (THG) from 2.25 μm. In this configuration, the phase-matching condition is fulfilled between the zeroth-order mode at fundamental frequency (FF) and the first-order mode at third-harmonic frequency (THF). Due to the asymmetrical geometry, the mode overlap between the two involved modes is significantly enhanced, leading to an efficient THG process. According to the numerical calculation, the conversion efficiency is predicted up to 1.4% with 1-W pump power. The proposed APSW has the potential to realize an integrated efficient THG device in nanometer scale.

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