Nonlinear mixing in nanowire subwavelength waveguides

Carl J. Barrelet, Ho Seok Ee, Soon Hong Kwon, Hong Gyu Park

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)


The realization of nonlinear photonic circuits to achieve the control of light-by-light is contingent upon a strong nonlinear response that can be captured in a guided-wave geometry. There remains a need to further scale down waveguides while maintaining a strong nonlinear response. In this study, we report second-harmonic generation and optical parametric generation using the second-order nonlinear response in an 80 nm thick CdS nanowire subwavelength waveguide. Moreover, our three-dimensional finite-difference time-domain (FDTD) simulations demonstrate that it is possible to enhance the coherence length due to the very nature of the subwavelength geometry. Nonlinear mixing in a nanowire subwavelength waveguide represents an advance toward all-optical processing and all-optical switching in integrated photonic circuits.

Original languageEnglish
Pages (from-to)3022-3025
Number of pages4
JournalNano Letters
Issue number7
Publication statusPublished - 2011 Jul 13


  • Semiconductor nanowires
  • all-optical switching
  • optical parametric generation
  • second harmonic generation
  • subwavelength waveguides

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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