Broadband wide-view all-dielectric handedness-preserving mirror
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917199707373568 |
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| author | Salakhova, Natalia Demenev, Andrey Klimenko, Oleg Kulakovskii, Vladimir Antonov, Vladimir Gippius, Nikolay Dyakov, Sergey |
| author_facet | Salakhova, Natalia Demenev, Andrey Klimenko, Oleg Kulakovskii, Vladimir Antonov, Vladimir Gippius, Nikolay Dyakov, Sergey |
| contents | We report the theoretical design and experimental realization of a wideband, all-dielectric mirror that preserves the handedness of incident light upon reflection in the near-infrared range. The mirror consists of a high-contrast, near-subwavelength, one-dimensional dielectric grating on a Bragg mirror. We optimized this structure using a genetic algorithm and demonstrated its robustness against geometric imperfections and oblique incidence. Experimental reflection spectra measured under normal incidence in a circular polarization basis demonstrate a more than 100-nm-wide reflection band in which more than 98% of the reflected light preserves its handedness. The total reflection coefficient reached 80%. Furthermore, we demonstrate that the fabricated mirror maintains high performance even under oblique incidence for angles up to $\pm 15^\circ$. Owing to these unique characteristics, this mirror can serve as a reflective phase plate, making it an excellent candidate for the creation of a Fabry-Pérot resonator for chiral light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08695 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Broadband wide-view all-dielectric handedness-preserving mirror Salakhova, Natalia Demenev, Andrey Klimenko, Oleg Kulakovskii, Vladimir Antonov, Vladimir Gippius, Nikolay Dyakov, Sergey Optics We report the theoretical design and experimental realization of a wideband, all-dielectric mirror that preserves the handedness of incident light upon reflection in the near-infrared range. The mirror consists of a high-contrast, near-subwavelength, one-dimensional dielectric grating on a Bragg mirror. We optimized this structure using a genetic algorithm and demonstrated its robustness against geometric imperfections and oblique incidence. Experimental reflection spectra measured under normal incidence in a circular polarization basis demonstrate a more than 100-nm-wide reflection band in which more than 98% of the reflected light preserves its handedness. The total reflection coefficient reached 80%. Furthermore, we demonstrate that the fabricated mirror maintains high performance even under oblique incidence for angles up to $\pm 15^\circ$. Owing to these unique characteristics, this mirror can serve as a reflective phase plate, making it an excellent candidate for the creation of a Fabry-Pérot resonator for chiral light. |
| title | Broadband wide-view all-dielectric handedness-preserving mirror |
| topic | Optics |
| url | https://arxiv.org/abs/2601.08695 |