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Schematic diagram of the experimental setup.
Photographs of (a) input, (b) diffraction, (c) soliton, and (d)–(f) their intensity profiles. (g) and (h) are top-view photographs showing diffraction of the beam and soliton formation, inside the bulk polymer, respectively.
Measured width of steady-state soliton as a function of input intensity. The inset shows a series of sliced-photos of the light beam emerging from the sample taken at different intensities, illustrating the evolution of the beam with increasing laser intensity.
Photograph showing distortion of the dark soliton stripe at small width of the input dark notch.
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