TAN Yi, HUANG Xin-min, REN Ya-jie. Influence of transducer bandwidth on photo-acoustic imaging resolution[J]. Journal of Applied Optics, 2011, 32(5): 831-834.
Citation: TAN Yi, HUANG Xin-min, REN Ya-jie. Influence of transducer bandwidth on photo-acoustic imaging resolution[J]. Journal of Applied Optics, 2011, 32(5): 831-834.

Influence of transducer bandwidth on photo-acoustic imaging resolution

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  • In order to research the influence of different bandwidths of transducer on photo-acoustic imaging resolution, finite element simulation experiments were carried out. An empirical formula was obtained between transducer bandwidth and photo-acoustic imaging resolution. Experimental results showed that the reconstructed image resolution of absorbers was unchanged in the order of millimeters when the cut-off frequency of transducer was greater than 2 MHz; however, it was contrary for the frequency less than 2 MHz. The results are helpful for the choice of transducer and the evaluation of image reconstruction.
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