Replicated grazing incidence x-ray optics

The replication technology represents an important alternative to other methods of X-ray optics production. We report on the past (first replicated X-ray mirror has been produced by our group just 30 years ago), present and future of replication of X-ray optics with emphasis on grazing incidence optics of various types and geometry. The various types of X-ray optics produced by replication with emphasis on astronomical optics are described and summarized. It is shown that the replicated X-ray optics will still play a major role in future space experiments and projects such as the ESA XEUS project and other coming missions.