Figure 4
From: Dynamic generation and modulation of acoustic bottle-beams by metasurfaces
(a) Acoustic field distributions of the bottle-beams through the AM with an obstacle for incident angles (\({\phi }_{1}=-\,{22}^{\circ }\),\({\phi }_{2}={22}^{\circ }\)) and (b) the intensity contrast \({|p/{p}_{0}|}^{2}\) profiles on the line “I”. (c) Acoustic field distributions of the bottle-beams through the AM with an obstacle for incident angles (\({\phi }_{1}=-{10}^{\circ }\), \({\phi }_{2}={40}^{\circ }\)) and (d) the intensity contrast \({|p/{p}_{0}|}^{2}\) profiles on the line “I”.
