串联涡旋日冕仪中的散斑相位测量。

Speckle-phase measurement in a tandem-vortex coronagraph.

作者信息

Serabyn Eugene, Wallace J Kent, Mawet Dimitri

机构信息

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.

出版信息

Appl Opt. 2011 Oct 1;50(28):5453-6. doi: 10.1364/AO.50.005453.

DOI:10.1364/AO.50.005453

PMID:22016212

Abstract

A tandem-vortex coronagraph can in theory enable high-contrast imaging behind a classical on-axis telescope. Here we point out that a tandem-vortex coronagraph configuration can also directly enable the measurement of the phases of focal-plane speckles, thereby allowing for their suppression in the resultant high-contrast image.

摘要

串联涡旋日冕仪理论上能够在经典的同轴望远镜后方实现高对比度成像。在此我们指出，串联涡旋日冕仪配置还能直接实现焦平面散斑相位的测量，从而在所得的高对比度图像中抑制这些散斑。