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Deformable mirror with thermal actuators

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Abstract

Low-cost adaptive optics is applied in lasers, scientific instrumentation, ultrafast sciences, and ophthalmology. These applications demand that the deformable mirrors used be simple, inexpensive, reliable, and efficient. We report a novel type of ultralow-cost deformable mirror with thermal actuators. The device has a response time of 5 s, an actuator stroke of 6 µm, and temporal stability of λ/10 rms in the visible range and can be used for correction of rather large aberrations with slow-changing amplitude.

© 2002 Optical Society of America

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