Figure 2

3D distributions of melanin in benign melanoma.
(a–f) denote the 3D images of benign melanoma at different positions of the sample, with the images named B1–B8, respectively. Scale bar: 2 μm. Pump: 488 nm/0.43 mW/20 MHz/~100 ps. Probe: 632.8 nm/0.28 mW/20 MHz/~100 ps. Dwell time: 3 ms.