Figure 2: Pressure fields of different propagating modes.
From: Observation of low-loss broadband supermode propagation in coupled acoustic waveguide complex
(a–e) Normalized pressure field distributions of five different supermodes at m = 1, 2, 3, 4, 5, respectively. The weight factors of all air channels for each supermode are appended on top of the corresponding panels. (f) Normalized pressure field distribution when the input does not form a supermode. The operation frequency f = 4 kHz.
