Fizeau interferometer with binary phase Fresnel-zone plate reference for precision measurement of large convex lens. (November 2018)

• Record Type: Journal Article
• Authors: Wei, Xiaohong; He, Yuhang; Liu, Zhengkun; Xu, Kaiyuan; Gao, Bo; Li, Qiang; Liu, Ang; Chai, Liqun
• Is Part Of: Optics and lasers in engineering. Volume 110(2018)
• Page Start: 348
• Page End: 355
• Publication Date: 2018-11
• Subjects: Optical testing -- Interferometry -- Fresnel zone plate -- Large optics; 120. 2880 -- 120. 3940 -- 120.7000; Lasers in engineering -- Periodicals; Optical measurements -- Periodicals; Optics -- Periodicals; Lasers en ingénierie -- Périodiques; Mesures optiques -- Périodiques; Optique -- Périodiques; 621.36605
• DOI: 10.1016/j.optlaseng.2018.06.006
• Languages: English
• ISSNs: 0143-8166

Abstract

Highlights: A flexible and accurate method of obtaining precision transmission wavefront of large convex lens interferometrically using Fresnel zone plate was presented. A direct comparison of the Fresnel zone plate method measurement with results from a Fizeau interferometry method test shows excellent agreement. Measurement uncertainty analysis shows less than λ/10 accuracy for measuring the transmission wavefront of a sphere lens with 30.5 m focal length and Φ410 mm clear aperture. Abstract: A method of obtaining precision transmission wavefront of large convex lens interferometrically using binary Fresnel zone plate (FZP) was presented. We present the results from a set of experiments that demonstrate the accuracy, flexibility, and the simplicity of performing the FZP test. A direct comparison of the FZP measurement with results from a Fizeau interferometry method shows excellent agreement. Finally, measurement uncertainty of lens due to alignment error and FZP fabrication processes is analyzed. This resulting analysis shows less than λ/10 accuracy for measuring the transmission wavefront of a sphere lens with 31.25 m focal length and Φ410 mm clear aperture.