Effects of fabrication errors on MTF and diffraction efficiency for binary optical lens

Tieqiao Zheng; Xuemin Cheng; Qiaofeng Tan

doi:10.1117/12.2505638

12 December 2018 Effects of fabrication errors on MTF and diffraction efficiency for binary optical lens

Tieqiao Zheng, Xuemin Cheng, Qiaofeng Tan

Proceedings Volume 10847, Optical Precision Manufacturing, Testing, and Applications; 108470X (2018) https://doi.org/10.1117/12.2505638
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

Since the performance of binary optical element (BOE) is affected vastly by etching depth error, mask misalignment and feature rounding introduced by the fabrication process, it becomes important to analyze the effects of fabrication errors on the BOE. The phase pattern of binary optical lens will not be symmetrical when the misalignment error exists, and it is very complicate to analyze the diffraction efficiency. Based on the relationship between the diffraction efficiency and the modulation transfer function (MTF), the MTF of a binary optical lens with different fabrication errors is calculated, and the effects on diffraction efficiency are also obtained.

Citation Download Citation

Tieqiao Zheng, Xuemin Cheng, and Qiaofeng Tan "Effects of fabrication errors on MTF and diffraction efficiency for binary optical lens", Proc. SPIE 10847, Optical Precision Manufacturing, Testing, and Applications, 108470X (12 December 2018); https://doi.org/10.1117/12.2505638

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