Fig. 2.
Characteristics of the reflection-mode MFOR-PAM. (a) MAP image of two crossed 6-μm-diameter carbon fibers. (b) PA amplitude distribution along the dashed line in (a). Blue circles are the experimental data, and the red curve is the Gaussian fit. (c) In vivo photoacoustic image of a black needle inserted obliquely into the leg of a nude mouse.
