Nonreciprocal optical isolation via graphene based photonic crystals
| Autor: | M. Karimi Habil, S. Roshan Entezar |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Optical isolator business.industry Graphene Band gap Transfer-matrix method (optics) Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials law.invention Magnetic field Transmission properties law 0103 physical sciences Perpendicular Optoelectronics 010306 general physics 0210 nano-technology business Photonic crystal |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 449:33-39 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2017.10.017 |
| Popis: | The transmission properties of a one-dimensional photonic crystal containing graphene mono-layers are studied using the transfer matrix method. It is shown that the structure can be used as a polarization-selective nonreciprocal device which discriminates between the two circularly polarized waves with different handedness impinging in the same direction. This structure may be utilized in designing optical isolators for the circularly polarized waves due to the gyrotropic behavior of the graphene mono-layers under the perpendicularly applied external magnetic field. Moreover, the effect of an external magnetic field and the chemical potential of the graphene mono-layers on the band gap of the structure are investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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