Curved transport of microbubbles with compensated acoustic airy beams

Airy beams in acoustic tweezer devices have the advantages of propagation invariance, transverse acceleration, and self-healing, which may be useful for applications in micromanipulation and clinical medicine. However, the existing Airy beam generation devices, which only modulate the initial phase, greatly reduce their spatial propagation invariance, and the scattering force on which they transmit large particles (larger than the wavelength) cannot determine and control their transmission ends. Here, we report the generation of compensated acoustic Airy beams, which show adjustable peak positions, allowing the microbubbles to be dragged into predefined destinations along parabolic trajectories.