Nonlinear guiding of light in tunable food-dye solutions

17 Mar 2020 Liang Guo Han Sojin Hu Xubo Solis Felix Martinez Kelly Trevor Siggins Graham Xiang Yinxiao Xu Huizhong Chen Zhigang

We provide the first demonstration of nonlinear self-trapping of light in solutions of food coloring dyes, leading to dirt cheap soliton waveguides. The optical self-focusing nonlinearity observed in such solutions is attributed to the optical absorption force acting on dye molecules, as the thermal effect at relatively higher power results in a self-defocusing nonlinearity... (read more)

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  • OPTICS
  • PATTERN FORMATION AND SOLITONS