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. Author manuscript; available in PMC: 2011 Apr 6.
Published in final edited form as: Opt Lett. 2010;35(12):2067–2069. doi: 10.1364/OL.35.002067

Fig. 1. Schematic of the OR-PAM system and experimental setup.

Fig. 1

(a) The schematic of the OR-PAM system. (b) The optical focus is much smaller than the targeted blood vessel, whose top surface within the optical focal diameter can therefore be approximated as a plane.