Figure 8.
The pressure sensitivity of the microbubble under different cavity lengths: (a) d = 25 μm; t = 2 μm; (b) d = 54 μm, t = 2.1 μm; (c) d = 71 μm, t = 2 μm; (d) d = 145 μm, t = 4 μm, respectively.
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