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Head-on nonlinear excitation of tilted linear modes in photorefractive medium

Author

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  • Timotijević, Dejan V.
  • Piper, Aleksandra Ž.
  • Vasiljević, Jadranka M.
  • Mitić, Damir V.
  • Jović Savić, Dragana M.

Abstract

We present hypothesis intending to explain the mechanism of localized tilted modes formation during the nonlinear propagation of aperiodic non-diffracting beams, considering only aperiodic discrete structures that support linear modes. Such modes are experimentally realized head-on in a single experimental configuration, through optical induction in a photorefractive medium. Our findings suggest that appropriate nonlinearity with localized symmetry deviation leads to excitation of tilted mode without a tilted probe beam and guiding potential, but we confirm that such potentials arise through nonlinear evolution.

Suggested Citation

  • Timotijević, Dejan V. & Piper, Aleksandra Ž. & Vasiljević, Jadranka M. & Mitić, Damir V. & Jović Savić, Dragana M., 2026. "Head-on nonlinear excitation of tilted linear modes in photorefractive medium," Chaos, Solitons & Fractals, Elsevier, vol. 207(C).
    • Handle: RePEc:eee:chsofr:v:207:y:2026:i:c:s0960077926000834
    DOI: 10.1016/j.chaos.2026.117942
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