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Updated: Jul 13, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Comment on "A new class of out-gap discrete solitons in binary waveguide arrays" [Chaos 32, 073113 (2022)]
1Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden.
Abstract:
Recent results [M. C. Tran and T. X. Tran, Chaos 32, 073113 (2022)] are put into the context of earlier work [A. V. Gorbach and M. Johansson, Eur. Phys. J. D 29, 77-93 (2004); M. Johansson and A. V. Gorbach, Phys. Rev. E 70, 057604 (2004)]. The two newly found families of "beyond-band discrete solitons" [M. C. Tran and T. X. Tran, Chaos 32, 073113 (2022)] are found to be smooth continuations of "on-top breathers" briefly mentioned by Gorbach and Johansson [Eur. Phys. J. D 29, 77-93 (2004)] and Johansson and Gorbach [Phys. Rev. E 70, 057604 (2004)] and the relevant bifurcation scenarios are described. One family is shown to be linearly unstable with respect to symmetry-breaking oscillations.
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