Investigator I. Gnilitskyi L. Orazi Thibault Derrien, Ph.D. Prof. Dr. Sci. Nadezhda Bulgakova, Ph.D. T. Mocek Laboratory / Department Scientific Laser Applications Patent number Patent CZ 307361 B6 Date of award 16 May 2018 Postscript A method of obtaining a regular periodic structure and a device for producing thereof