Fig. 4
From: Concurrent photoacoustic and ultrasound microscopy with a coaxial dual-element ultrasonic transducer
Dual-transducer PAUS of a leaf phantom. Phantom leaf results obtained by an alternative PAUS system with two single-element focused ultrasonic transducers, showing the XY and XZ projections for US (a, b), PA (c, d), and fused PAUS (e, f). The FOV for the XY plane is 5 × 4 mm2, and the left part is the green leaf and the right part is the red leaf