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The research on steady-state spatial solitons was recently stimulated by the demonstration of (1+1)D and (2+1)D compensation of diffraction by refractive index modulation in photorefractive crystals (using low power lasers). The steady-state (screening) solitons were first predicted by Segev et al and by Christodoulidis and Carvalho. The theory of steady-state solitons in PRC was by Crosignani et al. Segev et al [1] and Crosignani et al [2] wrote good reviews over the major achievements in the field.
© 2001 EPS
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