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Design and fabrication of prototype piezoelectric adjustable X-ray mirrors

  • Julian Walker
  • , Tianning Liu
  • , Mohit Tendulkar
  • , David N. Burrows
  • , Casey T. Deroo
  • , Ryan Allured
  • , Edward N. Hertz
  • , Vincenzo Cotroneo
  • , Paul B. Reid
  • , Eric D. Schwartz
  • , Thomas N. Jackson
  • , Susan Trolier-Mckinstry

Research output: Contribution to journalArticlepeer-review

Abstract

Lynx, a next generation X-ray observatory concept currently under study, requires lightweight, high spatial resolution X-ray mirrors. Here we detail the development and fabrication of one of the candidate technologies for Lynx, piezoelectric adjustable X-ray optics. These X-ray mirrors are thin glass shell mirrors with Cr/Ir X-ray reflective coatings on the mirror side and piezoelectric thin film actuators on the actuator side. Magnetron sputtering was used to deposit metal electrodes and metal-oxide piezoelectric layers. The piezoelectric (Pb0.995(Zr0.52Ti0.48)0.99Nb0.01O3) was divided into 112 independent piezoelectric actuators, with 100% yield achieved. We discuss the fabrication procedure, residual thermal stresses and tuning of the Cr/Ir coating stress for the purposes of stress balancing.

Original languageEnglish (US)
Pages (from-to)27757-27772
Number of pages16
JournalOptics Express
Volume26
Issue number21
DOIs
StatePublished - Oct 15 2018

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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