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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.00321 |
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| _version_ | 1866908928088997888 |
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| author | Nobukawa, Teruyoshi Murai, Shunsuke Higashida, Ryo Yamaguchi, Yuta Miura, Masato Okamoto, Koichi Funabashi, Nobuhiko |
| author_facet | Nobukawa, Teruyoshi Murai, Shunsuke Higashida, Ryo Yamaguchi, Yuta Miura, Masato Okamoto, Koichi Funabashi, Nobuhiko |
| contents | The undesired zeroth-order diffraction (ZOD) arising from imperfections in diffractive optical elements (DOEs) degrades the quality of target optical wavefronts. Herein, we propose a zeroth-order-free holographic reconstruction method using a nanoimprinted nonlocal metasurface. By judiciously designing the metasurface structure and its angular selectivity based on guided mode resonance, the ZOD can be suppressed without relying on a bulky, conventional 4f setup. We designed and fabricated a nanoimprinted nonlocal metasurface using a high-refractive-index TiO2-composite resin. Using the metasurface, we demonstrated ZOD suppression in a surface-relief DOE and a spatial light modulator. Furthermore, we prototyped a 20-mm-square metasurface and verified its effectiveness in suppressing the ZOD in 3D holographic projection. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_00321 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Zeroth-order-free holographic reconstruction with a nanoimprinted nonlocal metasurface Nobukawa, Teruyoshi Murai, Shunsuke Higashida, Ryo Yamaguchi, Yuta Miura, Masato Okamoto, Koichi Funabashi, Nobuhiko Optics The undesired zeroth-order diffraction (ZOD) arising from imperfections in diffractive optical elements (DOEs) degrades the quality of target optical wavefronts. Herein, we propose a zeroth-order-free holographic reconstruction method using a nanoimprinted nonlocal metasurface. By judiciously designing the metasurface structure and its angular selectivity based on guided mode resonance, the ZOD can be suppressed without relying on a bulky, conventional 4f setup. We designed and fabricated a nanoimprinted nonlocal metasurface using a high-refractive-index TiO2-composite resin. Using the metasurface, we demonstrated ZOD suppression in a surface-relief DOE and a spatial light modulator. Furthermore, we prototyped a 20-mm-square metasurface and verified its effectiveness in suppressing the ZOD in 3D holographic projection. |
| title | Zeroth-order-free holographic reconstruction with a nanoimprinted nonlocal metasurface |
| topic | Optics |
| url | https://arxiv.org/abs/2604.00321 |