Disorder effects on the coupling strength of coupled photonic crystal slab cavities
We study the effects of disorder on the coupling strength of coupled photonic crystal slab cavities by considering fully-3D electromagnetic calculations. Specifically, we investigate two coupled L 3 cavities at 30° and 60° configurations, where the coupling strength J (or photon hopping) is extracte...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aace8d |
| _version_ | 1797750654063607808 |
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| author | J P Vasco V Savona |
| author_facet | J P Vasco V Savona |
| author_sort | J P Vasco |
| collection | DOAJ |
| description | We study the effects of disorder on the coupling strength of coupled photonic crystal slab cavities by considering fully-3D electromagnetic calculations. Specifically, we investigate two coupled L 3 cavities at 30° and 60° configurations, where the coupling strength J (or photon hopping) is extracted from the simulations in the presence of disorder. We found that the relative fluctuations of the photon hopping are more sensitive to disorder effects than the corresponding fluctuations in the eigenfrequencies of the coupled cavities. Furthermore, for the typical range of disorder in state-of-the-art devices, the J fluctuations are found to increase linearly as a function of the disorder amplitude. This allows one to set upper bounds to the amplitude of fabrication imperfections, for which the coupling predicted by design can still be expected, on average, in a fabricated device. |
| first_indexed | 2024-03-12T16:36:58Z |
| format | Article |
| id | doaj.art-e62e48e612c04dbf99cb577324f77710 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:36:58Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-e62e48e612c04dbf99cb577324f777102023-08-08T14:52:35ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120707500210.1088/1367-2630/aace8dDisorder effects on the coupling strength of coupled photonic crystal slab cavitiesJ P Vasco0https://orcid.org/0000-0001-5495-1010V Savona1https://orcid.org/0000-0002-8984-6584Institute of Physics , École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandInstitute of Physics , École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandWe study the effects of disorder on the coupling strength of coupled photonic crystal slab cavities by considering fully-3D electromagnetic calculations. Specifically, we investigate two coupled L 3 cavities at 30° and 60° configurations, where the coupling strength J (or photon hopping) is extracted from the simulations in the presence of disorder. We found that the relative fluctuations of the photon hopping are more sensitive to disorder effects than the corresponding fluctuations in the eigenfrequencies of the coupled cavities. Furthermore, for the typical range of disorder in state-of-the-art devices, the J fluctuations are found to increase linearly as a function of the disorder amplitude. This allows one to set upper bounds to the amplitude of fabrication imperfections, for which the coupling predicted by design can still be expected, on average, in a fabricated device.https://doi.org/10.1088/1367-2630/aace8dphotonic crystalscoupled cavitiesdisorder |
| spellingShingle | J P Vasco V Savona Disorder effects on the coupling strength of coupled photonic crystal slab cavities New Journal of Physics photonic crystals coupled cavities disorder |
| title | Disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| title_full | Disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| title_fullStr | Disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| title_full_unstemmed | Disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| title_short | Disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| title_sort | disorder effects on the coupling strength of coupled photonic crystal slab cavities |
| topic | photonic crystals coupled cavities disorder |
| url | https://doi.org/10.1088/1367-2630/aace8d |
| work_keys_str_mv | AT jpvasco disordereffectsonthecouplingstrengthofcoupledphotoniccrystalslabcavities AT vsavona disordereffectsonthecouplingstrengthofcoupledphotoniccrystalslabcavities |