Fig. 3.
Photoacoustic microscopy imaging results: photoacoustic A-line responses for (a) lithium niobate and (b) PMN-PT based transparent ultrasound transducers. The black line represents the time domain signal and blue line represents the corresponding frequency response. Lateral resolution measurement from the edge of a USAF target for (c) lithium niobate and (d) PMN-PT using fitted edge spread function (ESF) and line spread function (LSF). Insets show scanned images with the red dashed line indicating the scanning line for ESF. (e) Photoacoustic maximum amplitude projection (MAP) image of a carbon fiber phantom, and (f) a B-scan photoacoustic image along the white dashed line in (e).