Dirac cone switching in two-dimensional photonic crystals by rotation of the crystal basis

Jesus Manzanares-Martinez*, Cesar Augusto Romero-Ramos, Jorge Alberto Gaspar-Armenta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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.

Original languageEnglish
Article number102748
JournalResults in Physics
Volume15
DOIs
StatePublished - Dec 2019

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© 2019 The Authors

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