Figure 5: Structure of the non-Hermitian bent photonic lattice.
From: Experimental realization of Bloch oscillations in a parity-time synthetic silicon photonic lattice
(a) Structure of the non-Hermitian bent photonic lattice. This non-Hermitian lattice has the exact same geometrical design as the Hermitian counterpart. (b) SEM picture of the fabricated device where the input/output waveguide is located at the centre of the photonic lattice. (c) Zoom-in SEM view of the device. The 100-nm-wide and 4-nm-thick Cr layer can be seen on top of every other silicon waveguide. (b,c) Scale bar, 20 and 2 μm, respectively.
