Large Actuator Count MEMS Deformable Mirror Development

Abstract

Large-actuator-count deformable mirrors (DM) are essential for high-contrast imaging systems NASA is developing for exoplanet detection. These same mirrors can be used to correct aberrations from atmospheric turbulence for free-space communications and imaging applications. This presentation presents recent results on improving performance of DMs and scaling the DM technology to nearly 500 actuators. Performance improvements include the development of dielectric coatings and the demonstration of DMs with snap-in-failure mitigation devices. The presentation further describes work towards extending the DM technology to thousands of actuators.

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Document Details

Document Type
Technical Report
Publication Date
Jun 07, 2010
Accession Number
ADA536320

Entities

People

  • Michael A. Helmbrecht

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Actuators
  • Adaptive Optics
  • Atmospheric Motion
  • Coatings
  • Contrast
  • Deformable Mirrors
  • Department Of Defense
  • Detection
  • Electronics
  • Fabrication
  • High Resolution
  • Laser Communications
  • Manufacturing
  • Microelectromechanical Systems
  • Mirrors
  • Single Crystals
  • Turbulence

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Naval Mine Countermeasure Systems Development.

Technology Areas

  • Space