Dirac cone switching in two-dimensional photonic crystals by rotation of the crystal basis
| Autor: | Jesus Manzanares-Martinez, Cesar Augusto Romero-Ramos, Jorge Alberto Gaspar-Armenta |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Results in Physics, Vol 15, Iss , Pp - (2019) |
| Druh dokumentu: | article |
| ISSN: | 2211-3797 71334505 |
| DOI: | 10.1016/j.rinp.2019.102748 |
| Popis: | We demonstrate that the symmetry breaking in photonic crystals can be used to obtain a narrow opening of the Dirac cone. We have found that in a two-dimensional square lattice composed by dielectric square rods, it is possible to open a bandgap by rotating the crystal basis. Our simulations of the transmission demonstrate that it can be substantially tuned, allowing a switching mechanism. These results can be useful for developing active devices. |
| Databáze: | Directory of Open Access Journals |
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