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Spectrum of absorption from 400 nm to 1,000 nm.
Notes: The biological optical imaging window allows deeper penetration of light from the wavelengths of around 650–900 nm due to minimal absorption by the tissue components, HbO, Hb, and H2O in this wavelength range. Adapted by permission from Macmillan Publisher Ltd: Weissleder R. A clearer vision for in vivo imaging. Nat Biotechnol. 2001;19(4):316–317, Copyright ©2001.53
Abbreviation: Hb, hemoglobin.
