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We report a new type of Kerr-like nonlinear media (m-cresol/nylon solutions) exhibiting a giant tunable self-defocusing nonlinearity. Their nonlinear response can be enhanced dramatically by increasing the nylon concentration and is verified to be isotropic.
We show that high-intensity Airy pulses propagating in Kerr-type nonlinear media can preserve their self-accelerating features under appropriate conditions. By engineering the input pulses, controllable spectral shifting and reshaping are achieved.
We show how to enhance, reduce, and completely suppress the acceleration of Airy beams in graded-index media. By engineering the refractive-index gradient, active bending control of the Airy beams is realized, relevant to various environments.
Two-dimensional Airy beams controlled with self-focusing and self-defocusing nonlinearities exhibit unexpected behavior in free-space and scattering media, including stagnation and anomalous diffraction, and resistance to vibration and distortion, solely depending on the initial control.
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