Replicating physical motion with Minkowskian isorefractive spacetime crystals
Here, we show that isorefractive spacetime crystals with a travelling-wave modulation may mimic rigorously the response of moving material systems. Unlike generic spacetime crystals, which are characterized by a bi-anisotropic coupling in the co-moving frame, isorefractive crystals exhibit an observ...
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| Format: | Article |
| Language: | English |
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De Gruyter
2023-05-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2023-0144 |
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| author | Prudêncio Filipa R. Silveirinha Mário G. |
| author_facet | Prudêncio Filipa R. Silveirinha Mário G. |
| author_sort | Prudêncio Filipa R. |
| collection | DOAJ |
| description | Here, we show that isorefractive spacetime crystals with a travelling-wave modulation may mimic rigorously the response of moving material systems. Unlike generic spacetime crystals, which are characterized by a bi-anisotropic coupling in the co-moving frame, isorefractive crystals exhibit an observer-independent response, resulting in isotropic constitutive relations devoid of any bianisotropy. We show how to take advantage of this property in the calculation of the band diagrams of isorefractive spacetime crystals in the laboratory frame and in the study of the synthetic Fresnel drag. Furthermore, we discuss the impact of considering either a Galilean or a Lorentz transformation in the homogenization of spacetime crystals, showing that the effective response is independent of the considered transformation. |
| format | Article |
| id | doaj-art-12e3fbdbd82449669df0f598ccd5c87b |
| institution | Kabale University |
| issn | 2192-8606 2192-8614 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-12e3fbdbd82449669df0f598ccd5c87b2024-11-25T11:19:10ZengDe GruyterNanophotonics2192-86062192-86142023-05-0112143007301710.1515/nanoph-2023-0144Replicating physical motion with Minkowskian isorefractive spacetime crystalsPrudêncio Filipa R.0Silveirinha Mário G.1University of Lisbon – Instituto Superior Técnico and Instituto de Telecomunicações, Avenida Rovisco Pais 1, 1049-001Lisbon, PortugalUniversity of Lisbon – Instituto Superior Técnico and Instituto de Telecomunicações, Avenida Rovisco Pais 1, 1049-001Lisbon, PortugalHere, we show that isorefractive spacetime crystals with a travelling-wave modulation may mimic rigorously the response of moving material systems. Unlike generic spacetime crystals, which are characterized by a bi-anisotropic coupling in the co-moving frame, isorefractive crystals exhibit an observer-independent response, resulting in isotropic constitutive relations devoid of any bianisotropy. We show how to take advantage of this property in the calculation of the band diagrams of isorefractive spacetime crystals in the laboratory frame and in the study of the synthetic Fresnel drag. Furthermore, we discuss the impact of considering either a Galilean or a Lorentz transformation in the homogenization of spacetime crystals, showing that the effective response is independent of the considered transformation.https://doi.org/10.1515/nanoph-2023-0144metamaterialsminkowskian spacetime crystalsphotonic crystalsspace-time modulationsynthetic fresnel dragtravelling-wave modulation |
| spellingShingle | Prudêncio Filipa R. Silveirinha Mário G. Replicating physical motion with Minkowskian isorefractive spacetime crystals Nanophotonics metamaterials minkowskian spacetime crystals photonic crystals space-time modulation synthetic fresnel drag travelling-wave modulation |
| title | Replicating physical motion with Minkowskian isorefractive spacetime crystals |
| title_full | Replicating physical motion with Minkowskian isorefractive spacetime crystals |
| title_fullStr | Replicating physical motion with Minkowskian isorefractive spacetime crystals |
| title_full_unstemmed | Replicating physical motion with Minkowskian isorefractive spacetime crystals |
| title_short | Replicating physical motion with Minkowskian isorefractive spacetime crystals |
| title_sort | replicating physical motion with minkowskian isorefractive spacetime crystals |
| topic | metamaterials minkowskian spacetime crystals photonic crystals space-time modulation synthetic fresnel drag travelling-wave modulation |
| url | https://doi.org/10.1515/nanoph-2023-0144 |
| work_keys_str_mv | AT prudenciofilipar replicatingphysicalmotionwithminkowskianisorefractivespacetimecrystals AT silveirinhamariog replicatingphysicalmotionwithminkowskianisorefractivespacetimecrystals |