Nature Communications (Nov 2022)

A topological nonlinear parametric amplifier

  • Byoung-Uk Sohn,
  • Yue-Xin Huang,
  • Ju Won Choi,
  • George F. R. Chen,
  • Doris K. T. Ng,
  • Shengyuan A. Yang,
  • Dawn T. H. Tan

DOI
https://doi.org/10.1038/s41467-022-34979-y
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 9

Abstract

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Here the authors report the development of a topological nonlinear parametric amplification in a dimerized, Su-Schrieffer-Heeger waveguide. Kerr-induced chiral symmetry breaking is demonstrated, showcasing how nonlinearities may control transitions of topological modes to bulk states.