Dark spatial solitons in bulk azo-dye-doped polymer using photoinduced molecular reorientation

Bian, Shaoping; Kuzyk, Mark G.
August 2004
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1104
Academic Journal
We report the generation of dark spatial solitons in bulk Disperse Red 1 doped poly(methyl methacrylate) using photoinduced reorientation of azo-dye molecules. Planar solitions are formed when illuminated with a continuous-wave laser at intensities of the order of hundreds of miliwatts per square centimeter. The width of the soliton saturates to a minimum value at high intensity; and when the width of the initial dark notch is reduced, the equilibrium minimum width is unchanged.


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