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首页> 美国政府科技报告 >Extreme Adaptive Optics Testbed: Performance and Characterization of a 1024 Deformable Mirror.:Sponsored by Department of Energy, Washington, DC.
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Extreme Adaptive Optics Testbed: Performance and Characterization of a 1024 Deformable Mirror.:Sponsored by Department of Energy, Washington, DC.

机译：极端自适应光学测试平台：1024可变形镜的性能和特性：由华盛顿特区能源部赞助。

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摘要

We have demonstrated that a microelectrical mechanical systems (MEMS) deformable mirror can be flattened to < 1 nm RMS within controllable spatial frequencies over a 9.2-mm aperture making it a viable option for high-contrast adaptive optics systems (also known as Extreme Adaptive Optics). The Extreme Adaptive Optics Testbed at UC Santa Cruz is being used to investigate and develop technologies for high-contrast imaging, especially wavefront control. A phase shifting diffraction interferometer (PSDI) measures wavefront errors with sub-nm precision and accuracy for metrology and wavefront control. Consistent flattening, required testing and characterization of the individual actuator response, including the effects of dead and low-response actuators. Stability and repeatability of the MEMS devices was also tested. An error budget for MEMS closed loop performance will summarize MEMS characterization.

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