the invention relates to a method of manufacturing a stamper for producing optical disks , comprising the application of a photoresist to a stamper plate and the structuring of the applied photoresist film . the structuring comprises the successive exposure , development and heating of the photoresist film . the developed photoresist film is subjected to an additional exposure in the deep uv range prior to the final heat treatment . the invention also relates to a stamper and to an optical disk obtained using the stamper .