Extended-image-based correction of aberrations using a deformable mirror with hysteresis.
Extended-image-based correction of aberrations using a deformable mirror with hysteresis.
复制标题
使用具有滞后作用的变形镜进行基于扩展图像的像差校正。
作者:
Orestis Kazasidis;S. Verpoort;O. Soloviev;G. Vdovin;M. Verhaegen;U. Wittrock
With a view to the next generation of large space telescopes, we investigate guide-star-free, image-based aberration correction using a unimorph deformable mirror in a plane conjugate to the primary mirror. We designed and built a high-resolution imaging testbed to evaluate control algorithms. In this paper we use an algorithm based on the heuristic hill climbing technique and compare the correction in three different domains, namely the voltage domain, the domain of the Zernike modes, and the domain of the singular modes of the deformable mirror. Through our systematic experimental study, we found that successive control in two domains effectively counteracts uncompensated hysteresis of the deformable mirror.
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影响因子:
3.4
作者:
Wahl,DanielJ;Jian,Yifan;Bonora,Stefano;Zawadzki,RobertJ;Sarunic,MarinkoV
通讯作者:
Sarunic,MarinkoV
影响因子:
3.6
作者:
S. Bonora;R. Zawadzki
通讯作者:
S. Bonora;R. Zawadzki
影响因子:
3.6
作者:
Booth, Martin J.
通讯作者:
Booth, Martin J.
影响因子:
3.4
作者:
Sulai,YusufuN;Dubra,Alfredo
通讯作者:
Dubra,Alfredo