Supplementary materials for Acoustic sub-wavelength imaging via a virtual super-lens

See the supplementary material for (1) the derivation of the relationship between k_max and SNR, (2) the super-resolution imaging simulation of a rabbit-shape sample at varying frequencies, (3) simulation result of rabbit-shape sample under ambient noises and corresponding experiment results, (4) the super-resolution imaging simulation results of a rabbit-shape sample under variable SNR levels, and (5) the super-resolution imaging of a rabbit-shaped sample in terms of acoustic velocity intensity.