We report the femtosecond (fs) laser fabrication of biomimetic omnidirectional iridescent metallic surfaces exhibiting efficient diffraction for practically any angle of light incidence. Such diffractive behavior is realized by means of multi-directional low-spatial-frequency. laser-induced periodic surface structures (LSFL) formed upon exploiting the cylindrical symmetry of a cylindr... https://www.hindigyanvishv.com/