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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Radiat Res. 2012 Feb 23;177(4):365–375. doi: 10.1667/rr2531.1

FIG. 1.

FIG. 1

The NIR window has relatively low absorption, enabling deeper penetration of light. Absorption is shown for 10 μM hemoglobin (22) and water (23). (Reproduced with permission from ref. 24.)