Precision Adaptive Optics Imaging with Spatially Filtered Aperture Masking Interferometry

使用空间滤波孔径掩蔽干涉测量法进行精密自适应光学成像

• 批准号: 0705085
• 负责人: James Lloyd
• 金额: $ 49.7万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-15 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0705085&HistoricalAwards=false
• 关键词: Precision; Adaptive; Optics; Imaging; Spatially

This project addresses the problems of precise calibration of Adaptive Optics observations by use of an entirely novel application of aperture masking interferometry. The use of a non-redundant pupil mask reduces the problem of information extraction in the field of Adaptive Optics and enables a higher precision calibration of the point spread function structure delivered by the Adaptive Optics system up to the highest angular resolutions. The project will improve the Adaptive Optics Non-Redundant Masking experiment by implementing spatial filtering, which has previously demonstrated dramatic improvements in precision in long baseline interferometry. Improving the understanding of Adaptive Optics performance is very important and timely as a very large fraction of present and future ground based astronomy depends on extracting results from Adaptive Optics data.

该项目通过使用孔径掩模干涉测量的全新应用来解决自适应光学观测的精确校准问题。非冗余光瞳掩模的使用减少了自适应光学领域中的信息提取问题，并且能够对自适应光学系统提供的点扩散函数结构进行更高精度的校准，直至最高的角分辨率。该项目将通过实施空间滤波来改进自适应光学非冗余掩蔽实验，该实验此前已证明长基线干涉测量的精度得到了显着提高。提高对自适应光学性能的理解非常重要且及时，因为当前和未来的地面天文学很大一部分取决于从自适应光学数据中提取结果。