Abstract

We propose a simple and compact three-wave radial shearing interferometer (TWRSI). This interferometer is constructed by a Gabor zone plate (GZP) and a charge-coupled device (CCD). The nominal plane wavefront under test is diffracted by the GZP into three orders (i.e., a parallel beam, a converging spherical beam, and a diverging spherical beam) leading to an interference pattern. In the imaging plane, three beams can be considered as being the copies of the incident beam, the compressed beam, and the expanded beam, respectively. A CCD detector located in the vicinity of the GZP records this interference pattern. Wavefront can be reconstructed by a single interferogram. The experiment result shows that the proposed method is correct and accurate. This TWRSI is compact, vibration insensitive, suitable for measurement of continuous and transient wavefront.

© 2019 Optical Society of America

Multiple-wave radial shearing interferometer based on a Fresnel zone plate

Zhongyu Wang, Shuai Wang, Ping Yang, and Bing Xu
Opt. Express 26(26) 34928-34939 (2018)

Compact single-shot radial shearing interferometer with random phase shift

Naiting Gu, Benxi Yao, Linhai Huang, and Changhui Rao
Opt. Lett. 42(18) 3622-3625 (2017)

Holographic Radial Shear Interferometer

J. C. Fouéré and D. Malacara
Appl. Opt. 13(9) 2035-2039 (1974)

Modal wavefront reconstruction for radial shearing interferometer with lateral shear

Naiting Gu, Linhai Huang, Zeping Yang, Qun Luo, and Changhui Rao
Opt. Lett. 36(18) 3693-3695 (2011)

A single-shot common-path phase-stepping radial shearing interferometer for wavefront measurements

Naiting Gu, Linhai Huang, Zeping Yang, and Changhui Rao
Opt. Express 19(5) 4703-4713 (2011)