Broadband dielectric permittivity tensor of muscovite for next-generation all van der Waals photonic components
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arXiv
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866913053743775744 |
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| author | Hayrapetyan, Meri Sargsyan, Maksim Karakhanyan, David Khachatryan, Ani Levonyan, Maria Litvinov, Dmitrii Koperski, Maciej Margaryan, Artsruni Šiškins, Makars Novoselov, Kostya S. Ghazaryan, Davit A. |
| author_facet | Hayrapetyan, Meri Sargsyan, Maksim Karakhanyan, David Khachatryan, Ani Levonyan, Maria Litvinov, Dmitrii Koperski, Maciej Margaryan, Artsruni Šiškins, Makars Novoselov, Kostya S. Ghazaryan, Davit A. |
| contents | We report a comprehensive determination of the broadband dielectric permittivity tensor of van der Waals (vdW) muscovite also referred to as mica, establishing it as a low-index low-loss platform for ultrathin nanophotonics. Resolving its anisotropic vibrational response and extracting accurate tensor components across broadband ultraviolet (UV) to near-infrared (NIR) spectral region, we show that vdW muscovite exhibits consistently low refractive indices negligible extinction and weak in-plane anisotropy allowing its effective treatment as a uniaxial dielectric in thin-film limits. Leveraging these properties, we design muscovite based vdW heterostructures pairing it MoS2, engineering few-layer distributed Bragg reflectors (DBR) and dichroic beam splitters (DBS) with high efficiency robust optical performance in a broad NIR spectral region achieved with sub-micron thicknesses. Our findings spotlight the high significance of low-index extinctionless vdW crystals, positioning muscovite as a highly perspective atomically flat building block for next-generation, broadband, all-vdW nanophotonic components. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_20023 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Broadband dielectric permittivity tensor of muscovite for next-generation all van der Waals photonic components Hayrapetyan, Meri Sargsyan, Maksim Karakhanyan, David Khachatryan, Ani Levonyan, Maria Litvinov, Dmitrii Koperski, Maciej Margaryan, Artsruni Šiškins, Makars Novoselov, Kostya S. Ghazaryan, Davit A. Optics Materials Science We report a comprehensive determination of the broadband dielectric permittivity tensor of van der Waals (vdW) muscovite also referred to as mica, establishing it as a low-index low-loss platform for ultrathin nanophotonics. Resolving its anisotropic vibrational response and extracting accurate tensor components across broadband ultraviolet (UV) to near-infrared (NIR) spectral region, we show that vdW muscovite exhibits consistently low refractive indices negligible extinction and weak in-plane anisotropy allowing its effective treatment as a uniaxial dielectric in thin-film limits. Leveraging these properties, we design muscovite based vdW heterostructures pairing it MoS2, engineering few-layer distributed Bragg reflectors (DBR) and dichroic beam splitters (DBS) with high efficiency robust optical performance in a broad NIR spectral region achieved with sub-micron thicknesses. Our findings spotlight the high significance of low-index extinctionless vdW crystals, positioning muscovite as a highly perspective atomically flat building block for next-generation, broadband, all-vdW nanophotonic components. |
| title | Broadband dielectric permittivity tensor of muscovite for next-generation all van der Waals photonic components |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2604.20023 |