Diffraction-based Sensitivity Analysis of Apodized Pupil-mapping Systems
Diffraction-based Sensitivity Analysis of Apodized Pupil-mapping Systems
复制标题
基于衍射的变迹瞳孔映射系统的灵敏度分析
DOI：
10.1086/507941
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
R. Vanderbei
中科院分区：
文献类型：
--
作者：
R. Belikov;N. Kasdin;R. Vanderbei
瞳孔测绘是一种很有前途的非传统高对比度成像新方法，正在考虑用于地球系外行星搜索。它采用了两个（或更多）专门设计的非球面镜，以创建一个高对比度的振幅分布在整个望远镜的瞳孔，不明显衰减振幅。因此，它在光收集效率和内部工作角度方面获得了显着的好处，这两个参数都是类地行星探测的关键参数。虽然已经发表了很多关于瞳孔映射系统的各个方面，波前像差的敏感性问题仍然是一个悬而未决的问题。本文提出了一种计算光瞳映射系统衍射传输的有效方法。该方法可用于光瞳成像和其他日冕仪像差灵敏度的精确研究。我们演示了一个特定的瞳孔映射系统，以及同心环形瞳孔冠状像差的灵敏度计算。
Pupil mapping is a promising and unconventional new method for high-contrast imaging being considered for terrestrial exoplanet searches. It employs two (or more) specially designed aspheric mirrors to create a high-contrast amplitude profile across the telescope pupil that does not appreciably attenuate amplitude. As such, it reaps significant benefits in light-collecting efficiency and inner working angle, both critical parameters for terrestrial planet detection. While much has been published on various aspects of pupil-mapping systems, the problem of sensitivity to wave front aberrations remains an open question. In this paper we present an efficient method for computing the diffraction propagation in a pupil-mapped system. This method can be used for accurate studies of aberration sensitivity in pupil mapping and other coronagraphs. We demonstrate calculations of sensitivity to Zernike aberrations for a particular pupil-mapping system, as well as a concentric-ring-shaped-pupil coronagraph.