Progress in replication of substrates for multilayer coatings

S. Romaine*, J. Everett, R. Bruni, A. Ivan, P. Gorenstein, M. Ghigo, F. Mazzoleni, O. Citterio, J. Pedulla

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Studies are being carried out to compare the performance of several different separation materials used in the replication process. This report presents the results obtained during the second year of a program which consists of replicating smooth, thin substrates, depositing multilayer coatings upon them, and evaluating their performance. Replication and multilayer coatings are both critically important to the development of focussing hard X-ray telescopes that function up to 100 keV. The activities of the current year include extending the comparison between sputtered amorphous carbon and evaporated gold to include sputtered as well as evaporated gold. The figure of merit being the smoothness of the replica which has a direct effect on the specular reflectivity. These results were obtained with epoxy replication, but they should be applicable to electroformed nickel, the process we expect to use for the ultimate replicated optics.

Original languageEnglish (US)
Pages (from-to)564-568
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventProceedings of the 1998 Conference on X-Ray Optics, Instruments, and Missions - San Diego, CA, USA
Duration: Jul 19 1998Jul 22 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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