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 ~6μm , 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
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.4040) Optical devices : Mirrors
Gleb Vdovin and Mikhail Loktev, "Deformable mirror with thermal actuators," Opt. Lett. 27, 677-679 (2002)