Affiliation:
1. Huazhong University of Science and Technology
2. Hunan University
Abstract
Interferometry is a basic physical method to record and reconstruct the three-dimensional (3D) topography of a complex object. However, mainstream interferometers using two beams can be unstable in a volatile environment. Here, we present a self-referenced optical vortex interferometer employing multi-tasking geometric phase elements. Compared with conventional devices, the multitasking elements can enable vortex filters while deflecting the interference beams to achieve high mode purity in broadband. We use the proposed system to reconstruct the 3D topography of a sample while determining its surface elevations and depressions accurately and conveniently in one static interference pattern.
Funder
Fundamental Research Funds for the Central Universities
Science, Technology and Innovation Commission of Shenzhen Municipality
Key R&D Program of Hubei Province of China
Key R&D Program of Guangdong Province
National Natural Science Foundation of China
National Key Research and Development Program of China
Subject
Atomic and Molecular Physics, and Optics
Cited by
3 articles.
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