Fig. 4. Non-reciprocal reflections due to the unpaired Dirac point.
a The incident wave from the left-upper region with the approximate angle of incidence α (=39.1°) can couple into the PhC slab (θ = 12.9° and B = 0.4 Tesla). The blue arrow represents the waves with the angle of incidence α. The black arrows represent the waves with the angles of incidence deviated from α and their reflections. b k-space analysis on the reflection of the PhC slab of the left-upper input wave. c The incident wave from the right-upper region is totally reflected. The red arrows represent the wave with the angle of incidence α and its reflection. The black arrows represent the waves with the angles of incidence deviated from α and their reflections. d k-space analysis on the reflection of the PhC slab of the right-upper input wave.