Analysis of the influence of antireflective coatings on the diffraction efficiency of diffractive optical elements
| Autor: | Michal Jozwik, Artur Sobczyk, Zdzisław Choromański, Anna Rojek, A. Kowalik, Grzegorz Fluder, Jerzy Krezel |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Diffraction efficiency 01 natural sciences Measure (mathematics) Atomic and Molecular Physics and Optics Modal method law.invention 010309 optics symbols.namesake Anti-reflective coating Diffractive lens Optics Fourier transform Coating law Imaging quality 0103 physical sciences engineering symbols 0210 nano-technology business |
| Zdroj: | Optics Express. 29:13025 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.422044 |
| Popis: | Diffractive optical elements (DOEs) may be used as a single optical component with dedicated functionality (e.g. focusing), or as one of the elements in complex hybrid optical systems to reduce the number of the elements and improve imaging quality. It is desirable to cover DOE’s surface with antireflective coating. In this paper, we show the results of simulations using the Fourier modal method and measure the efficiency of a diffractive lens with antireflective (AR) coating. Results were compared with a previously proposed model of AR covered DOE by Mao et al. [Opt. Express 25, 11673 (2017)10.1364/OE.25.011673]. Contrary to the previously published model, we have not observed a shift of the efficiency curve. Our findings prove that AR coatings improve the efficiency of DOEs and it is not necessary to take them into account when calculating optimal profile height. |
| Databáze: | OpenAIRE |
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