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Opt Lett. 2005 Jun 1;30(11):1381-3.

Self-healing generation of spatial solitons in liquid crystals.

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  • 1Nonlinear Optics and Optoelectronics Laboratory, National Institute for the Physics of Matter and Department of Electronic Engineering, University "Roma Tre," Via della Vasca Navale, 84-00146 Rome, Italy.


We demonstrate that, in suitably designed cells with undoped nematic liquid crystals, extraordinary-wave spatial solitons can be excited at every applied voltage without adjustments in the input polarization. Their walk-off, hence direction of propagation, is externally controlled over angles as large as 7 degrees. The results pave the way not only to polarization-forgiving generation but also to voltage readdressing of these extraordinary-wave nematicons.

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