Fig. 5: Coupled bound states in the continuum (BICs).
From: Exceptional energy harvesting from coupled bound states
a Schematic of two fully reduced cavities (FRCs) embedded in a rectangular housing. b Mapping of the maximum pressure enhancement of the coupled FRCs in terms of frequency, cavity length, and distance ranging from f = 2075 Hz to f = 2175 Hz, Lx,2 = 78.5 mm to Lx,2 = 81.5 mm, and Δ = 68 mm to Δ = 76 mm, respectively. The black crosses mark the two Fano peaks associated with maximum pressure enhancement.
