Collimation and finite-size effects in suspended resonant guided-mode gratings
| Autor: | Aurélien Dantan, Alexios Parthenopoulos, Ali Akbar Darki, Christian Toft-Vandborg |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Guided-mode resonance business.industry Fano resonance Physics::Optics FOS: Physical sciences Grating Atomic and Molecular Physics and Optics Collimated light Electronic Optical and Magnetic Materials Optics Computer Vision and Pattern Recognition Photonics business Beam (structure) Optomechanics Gaussian beam Physics - Optics Optics (physics.optics) |
| Zdroj: | Toft-Vandborg, C, Parthenopoulos, A, Darki, A A & Dantan, A R 2021, ' Collimation and finite-size effects in suspended resonant guided-mode gratings ', Journal of the Optical Society of America A, vol. 38, no. 11, pp. 1714-1725 . https://doi.org/10.1364/JOSAA.440215 |
| DOI: | 10.48550/arxiv.2108.04467 |
| Popis: | The optical transmission of resonant guided-mode gratings patterned on suspended silicon nitride thin films and illuminated at normal incidence with a Gaussian beam are investigated both experimentally and theoretically. Effects due to the beam focusing and its finite size are accounted for by a phenomenological coupled mode model whose predictions are found to be in very good agreement with the experimentally measured spectra for various grating structures and beam sizes, and which allow for a detailed analysis of the respective magnitude of these effects. These results are highly relevant for the design and optimization of such suspended structured films which are widely used for photonics, sensing and optomechanics applications. Comment: 13 pages, 13 figures |
| Databáze: | OpenAIRE |
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