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Deformable Mirrors with Thermal Actuators

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Part of the Springer Proceedings in Physics book series (SPPHY,volume 102)

Summary

Adaptive optics is applied in lasers, scientific instrumentation, ultrafast sciences, ophthalmology and material processing. For successful use in these applications, the deformable mirrors must be simple, inexpensive, reliable and efficient. Most of the currently used technologies based on piezoelectric, electrostrictive, electromagnetic and electrostatic actuation are rather expensive. We report on a novel type of ultra-low-cost deformable mirror with actuators based on thermal expansion. The 19-channel one inch deformable mirror has response time of ≈ 15 s, actuator stroke of about 6 μm, temporal stability of about ⋋/10 rms in the visible range. The mirror has shown good correction ability for low-order Zernike polynomials, therefore it can be used for correction of rather large aberrations with slow changing amplitudes in both temporal and spatial domains.

Keywords

  • Adaptive Optic
  • Electrostatic Actuation
  • Thermal Actuator
  • Copper Lead
  • Adaptive Optic System

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 2005 Springer-Verlag Berlin Heidelberg

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Vdovin, G., Loktev, M. (2005). Deformable Mirrors with Thermal Actuators. In: Wittrock, U. (eds) Adaptive Optics for Industry and Medicine. Springer Proceedings in Physics, vol 102. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-28867-8_3

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