Polychromatic focusing and imaging properties of tunable multifocal binary Gabor zone plates
[EN] In this paper, we introduce tunable binary multifocal Gabor zone plates (TBGZPs) as a novel family of diffractive amplitude lenses designed to create a desired multi-focal distribution. TBGZPs are conceived as a combination of several binary Gabor zone plates with different harmonic terms. We s...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/229117 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/229117 |
| Access Level: | acceso abierto |
| Palabra clave: | Diffractive optics Binary Gabor zone plates Polychromatic imaging analysis |
| Sumario: | [EN] In this paper, we introduce tunable binary multifocal Gabor zone plates (TBGZPs) as a novel family of diffractive amplitude lenses designed to create a desired multi-focal distribution. TBGZPs are conceived as a combination of several binary Gabor zone plates with different harmonic terms. We show how this combination can be tailored in the lens design intended to produce multiple foci with tunable intensity and focal lengths. Several examples are presented and evaluated numerically and experimentally. In particular, we introduce a new trifocal binary Gabor zone plate that, under polychromatic illumination, presents an extended depth of focus with low chromatic aberration. |
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