Subaperture stitching interferometry : playing jigsaw puzzles in three-dimensional space

✍ Scribed by Chen, Shanyong; Dai, Yifan; Li, Shengyi

Publisher: SPIE
Year: 2016
Tongue: English
Leaves: 59
Series: SPIE spotlight SL15.
Category: Library

No coin nor oath required. For personal study only.

✦ Synopsis

Wavefront interferometry is a standard solution when measuring optical surface error or wavefront aberrations. However, the lateral range of measurement is usually limited by the aperture of the interferometer. Subaperture stitching interferometry solves this problem by dividing the full aperture into a series of smaller, overlapping subapertures that are measured individually before being stitched back together. Read more...

✦ Table of Contents

Background: wavefront interferometry limited by both lateral and dynamic range of measurement --
2. History: review of related work --
3. Classification: different versions of subaperture stitching interferometry in various applications --
4. Subaperture aberrations: methods for subaperture layout design: 4.1. Null subaperture layout design
4.2. Aberrations of off-axis aspheric subapertures
4.3. Non-null subaperture layout design
4.4. Near-null optics
4.5. Near-null subaperture layout design --
5. Stitching: playing jigsaw puzzles in three-dimensional space: 5.1. Mathematical background
5.2. Configuration space-based stitching model
5.3. Iterative algorithm for subaperture stitching
5.4. Special techniques dealing with a large number of subapertures --
6. Uncertainty: how error sources affect the stitching: 6.1. Noise propagation during stitching
6.2. Decoupling induced aberrations from surface error --
7. Case studies: 7.1. Large flats
7.2. Hyper-hemispheres
7.3. Large convex spheres
7.4. Large convex aspheres --
8. Conclusions --
Acknowledgments --
References.

✦ Subjects

Interferometry;Synthetic apertures;Spectrum analysis

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