Fig. 1.

OR-PAM and its representative applications. (A) Schematic of a typical reflection-mode OR-PAM system [19]; (B) in vivo images of the ear, back, and cerebral vasculature of mice acquired with the system shown in (A); (C) exemplary images from a transmission-mode OR-PAM system [21]; (D) OR-PAM of H&E stained cell nucleus and internalized gold nanorods in the cytoplasm [22].

Reprinted with permission from Refs. [19,21,22].