Highly reflective and high-$Q$ thin resonant subwavelength gratings
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866913983591612416 |
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| author | Singh, Gurpreet Mitra, Trishala Madsen, Søren P. Dantan, Aurélien |
| author_facet | Singh, Gurpreet Mitra, Trishala Madsen, Søren P. Dantan, Aurélien |
| contents | We theoretically investigate the design of thin subwavelength gratings possessing high-reflectivity and high-$Q$ resonances when illuminated at normal incidence by a Gaussian beam. We compare the performances of single-period and dual-period rectangular gratings using Finite Element Method-based optimization and predict one to two orders of magnitude improvement in their transmission loss-linewidth product, which is the relevant figure of merit for e.g. resonant mirror-based microcavity applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_06143 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Highly reflective and high-$Q$ thin resonant subwavelength gratings Singh, Gurpreet Mitra, Trishala Madsen, Søren P. Dantan, Aurélien Optics We theoretically investigate the design of thin subwavelength gratings possessing high-reflectivity and high-$Q$ resonances when illuminated at normal incidence by a Gaussian beam. We compare the performances of single-period and dual-period rectangular gratings using Finite Element Method-based optimization and predict one to two orders of magnitude improvement in their transmission loss-linewidth product, which is the relevant figure of merit for e.g. resonant mirror-based microcavity applications. |
| title | Highly reflective and high-$Q$ thin resonant subwavelength gratings |
| topic | Optics |
| url | https://arxiv.org/abs/2404.06143 |