Abstract
We propose and numerically investigate a kind of tunable and robust reflection-free waveguides based on a gyromagnetic photonic crystal (PC). The time reversal symmetry breaking of the gyromagnetic PC under out-of-plane dc magnetic fields gives rise to one-way edge modes in both the second and third band gaps. It is found that the propagating properties of one-way modes in the waveguides can be easily controlled by adjusting the directions of external magnetic fields. Moreover, the one-way modes are robust against the disorder in the waveguides.
| Original language | English |
|---|---|
| Pages (from-to) | 1752-1761 |
| Number of pages | 10 |
| Journal | Journal of Electromagnetic Waves and Applications |
| Volume | 25 |
| Issue number | 11-12 |
| DOIs | |
| State | Published - 2011 |
| Externally published | Yes |