Method and optical system for Surface Structuring of Amorphous Substances via the Polatization Direction Modulated Light Field

摘要

A method for preparing SRG structures on a photoactive film material, comprising amorphous chalcogenide, or azobenzene polymers, the method comprising creating an optical field using single light beam and directing said light beam at said photoactive film material, creating a recording spot at said photoactive film material, wherein said light field is polarized and the polarization direction is laterally modulated over said recording spot. Incoherent lasers operating in ultraviolet and visible spectral region (300 nm - 800 nm) can be used. Also disclosed is an optical system for carrying out such method.