Fig. 3. Dynamical control of the corner skin mode.
a Dynamical control of corner skin mode spatial profile. As the non-Hermitian parameter is gradually reduced from |δx,max | = |δy,max | = 0.175 to |δx,max | = |δy,max | = 0.02 and back to |δx,max | = |δy,max | = 0.175, the corner skin mode becomes delocalized and then localized. From left to right the snapshots are shown for time steps 1, 9, 17, 25, 37, respectively. b Dynamically tweezing localized light along a designed “L”-shaped trajectory using the skin effect. Localized light is first moved in the +Y direction for 8 steps and then to the −X direction for 10 steps.