title: Solar tomography adaptive optics.
abstract: Conventional solar adaptive optics uses one deformable mirror (DM) and one guide star for wave-front sensing, which seriously limits high-resolution imaging over a large field of view (FOV). Recent progress toward multiconjugate adaptive optics indicates that atmosphere turbulence induced wave-front distortion at different altitudes can be reconstructed by using multiple guide stars. To maximize the performance over a large FOV, we propose a solar tomography adaptive optics (TAO) system that uses tomographic wave-front information and uses one DM. We show that by fully taking advantage of the knowledge of three-dimensional wave-front distribution, a classical solar adaptive optics with one DM can provide an extra performance gain for high-resolution imaging over a large FOV in the near infrared. The TAO will allow existing one-deformable-mirror solar adaptive optics to deliver better performance over a large FOV for high-resolution magnetic field investigation, where solar activities occur in a two-dimensional field up to 60'', and where the near infrared is superior to the visible in terms of magnetic field sensitivity.
authors.forename: Deqing
authors.initials: D
authors.lastname: Ren
authors.forename: Yongtian
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xi
authors.initials: X
authors.lastname: Zhang
authors.forename: Jiangpei
authors.initials: J
authors.lastname: Dou
authors.forename: Gang
authors.initials: G
authors.lastname: Zhao