Magnetic smart material application to adaptive x-ray optics

Melville P Ulmer, Michael E. Graham, Semyon Vaynman, Jian Cao, Peter Z. Takacs

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

11 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 midfrequency 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 publicationAdaptive X-Ray Optics
StatePublished - Nov 25 2010
EventAdaptive X-Ray Optics - San Diego, CA, United States
Duration: Aug 3 2010Aug 5 2010

Publication series

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


OtherAdaptive X-Ray Optics
CountryUnited States
CitySan Diego, CA


  • X-ray optics
  • adaptive optics
  • magnetic smart materials

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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