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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.
In order to reach the highest intensity of the focal spot, short focal length focusing optics are used in most of today's laser facilities. These optics usually degrade significantly the wavefront quality of the laser and so the focal spot quality. We present focal spots corrected from the focusing optics aberration thanks to direct focal spot adaptive optics. Diffraction limited performance of the...
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