Deformable mirrors for X-ray astronomy and beyond

Melville P Ulmer, M. E. Graham, S. Vaynman, Jian Cao, P. Z. Takacs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations


We discuss a technique of shape modification that can be applied to thin walled (∼; 100-400 micron thickness) electroformed replicated optics or slumped glass optics to improve the near net shape of the mirror as well as the mid-frequency ripple. The process involves sputter deposition of a magnetic smart material (MSM) film onto a permanently magnetic material. The MSM material exhibits strains about 400 times stronger than ordinary ferromagnetic materials. The deformation process involves a magnetic write head which traverses the surface, and under the guidance of active metrology feedback,locally magnetizes the surface to impart strain where needed. Designs and basic concepts as applied to space borne X-ray optics will be described.

Original languageEnglish (US)
Title of host publicationEUV and X-Ray Optics
Subtitle of host publicationSynergy Between Laboratory and Space II
StatePublished - Jun 14 2011
EventEUV and X-Ray Optics: Synergy Between Laboratory and Space II - Prague, Czech Republic
Duration: Apr 20 2011Apr 21 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherEUV and X-Ray Optics: Synergy Between Laboratory and Space II
Country/TerritoryCzech Republic


  • Adaptive Optics
  • Magnetically Smart Materials
  • X-ray Optics

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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