27 July 2016 Preliminary result of the solar multi-conjugate adaptive optics for 1m new vacuum solar telescope
Author Affiliations +
Abstract
Solar observation with high resolution in large field of view (FoV) is required for some solar active regions with the typical sizes of 1’ to 3’. Conventional adaptive optics (AO) could not satisfy this demand because of the atmospheric anisoplanatism. Through compensating the turbulence in different heights, multi-conjugate adaptive optics (MCAO) has been proved to obtain a larger corrected FoV. A MCAO experimental system including a conventional 151-element AO system and a 37-element MCAO part is being developed. The MCAO part contains a 37-element deformable mirror conjugated into the 2km to 5km height and a multi-direction Shack-Hartmann wavefront sensor (MD-SHWFS) with 7×7 subaperture array and 60 arcsec FoV, the frame rate of the MD-SHWFS is up to 840Hz. Three-dimensional (3-D) wavefront sensing utilizing atmospheric tomography had been validated by solar observation. Based on these results, a ground layer adaptive optics (GLAO) experimental system including a 151-element deformable mirror and the MD-SHWFS has been built at the 1m New Vacuum Solar Telescope (NVST). In this paper, the MCAO experimental system will be introduced. The preliminary experimental results of three-dimensional wavefront sensing and GLAO on the NVST of Full-shine Lake Solar Observatory are presented.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lanqiang Zhang, Lanqiang Zhang, Lin Kong, Lin Kong, Hua Bao, Hua Bao, Lei Zhu, Lei Zhu, Xuejun Rao, Xuejun Rao, Changhui Rao, Changhui Rao, } "Preliminary result of the solar multi-conjugate adaptive optics for 1m new vacuum solar telescope", Proc. SPIE 9909, Adaptive Optics Systems V, 99092C (27 July 2016); doi: 10.1117/12.2231955; https://doi.org/10.1117/12.2231955
PROCEEDINGS
7 PAGES


SHARE
Back to Top