Figure 6: Simulation and experimental observation of the non-Hermitian BO.
From: Experimental realization of Bloch oscillations in a parity-time synthetic silicon photonic lattice

(a) Simulated electric field amplitude distribution when a single waveguide, that is, the input waveguide, is excited. (b) Zoom-in view of the simulated electric field amplitude distribution in an area of 20 μm × 10 μm in the vicinity of the first Bloch recovery point. (c) Experimentally recorded electric field distribution for the same area using a scanning near-field optical microscope. The white dotted circles mark the secondary emission region, while red dots mark the recovery point in b,c.