论文标题
Subaru/scexao上的焦平面波前传感
Focal Plane Wavefront Sensing on SUBARU/SCExAO
论文作者
论文摘要
焦平面波前传感是波前传感的优雅解决方案，因为探测器所摄取的任何来源的近距离图像在存在畸变的情况下显示出畸变。非通用路径畸变和低风效应都具有限制最优质的冠状动脉的可实现对比度以及最佳极端自适应光学系统的可实现对比度。为了纠正这些畸变，Subaru Coronagraphic Extreme Adaptive Optics仪器使用尽可能接近科学探测器的检测器托管许多焦平面波前传感器。我们介绍了其中的七个，并比较了他们在Scexao上的实施和效率。这项工作对于下一代极大的望远镜的波前传感至关重要，这些望远镜可能会带来类似的局限性。
Focal plane wavefront sensing is an elegant solution for wavefront sensing since near-focal images of any source taken by a detector show distortions in the presence of aberrations. Non-Common Path Aberrations and the Low Wind Effect both have the ability to limit the achievable contrast of the finest coronagraphs coupled with the best extreme adaptive optics systems. To correct for these aberrations, the Subaru Coronagraphic Extreme Adaptive Optics instrument hosts many focal plane wavefront sensors using detectors as close to the science detector as possible. We present seven of them and compare their implementation and efficiency on SCExAO. This work will be critical for wavefront sensing on next generation of extremely large telescopes that might present similar limitations.
