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. Author manuscript; available in PMC: 2013 Sep 3.
Published in final edited form as: Opt Lett. 2013 Jul 15;38(14):2592–2595. doi: 10.1364/OL.38.002592

Fig. 2.

Fig. 2

Optical clearing aided PAM of a coin covered by mouse skin. (a) Photograph of the one cent coin used in the experiment. (b)–(d) PA images of the coin at different times during optical clearing. (e) Time course of the PA amplitude averaged over the whole image during optical clearing. The higher PA amplitude indicates that the optical clearing increased penetration depth.