Effect of the surface roughness on the efficiency of diffractive optical elements

The proposed study aims to investigate the effect of surface roughness on the efficiency of diffractive optical elements (DOEs) used in imaging optical systems. A mathematical model describing the influence of surface roughness on diffraction efficiency and polychromatic integral diffraction efficie...

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Bibliographic Details
Published in:Applied optics (2004) 2018-12, Vol.57 (35), p.10276
Main Authors: Zhao, Lidong, Cui, Qingfeng, Mao, Shan, Hu, Yang
Format: Article
Language:English
Subjects:
Computer simulation
Diffraction efficiency
Diffractive optical elements
Efficiency
Monolayers
Multilayers
Optical components
Polymethyl methacrylate
Rapid prototyping
Substrates
Surface roughness
Surface roughness effects
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Summary:The proposed study aims to investigate the effect of surface roughness on the efficiency of diffractive optical elements (DOEs) used in imaging optical systems. A mathematical model describing the influence of surface roughness on diffraction efficiency and polychromatic integral diffraction efficiency (PIDE) is presented, and its effects are analyzed and simulated. Examples of single-layer DOEs containing PMMA substrate and multi-layer DOEs composed of a combination of PMMA and polycarbonate substrates for each layer used in the visible region are analyzed. The results can be used to analyze the effects of surface roughness on the diffraction efficiency and PIDE of DOEs.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.57.010276