Among the various optics-based tools used in diagnostics, diffuse optics (DO) is rapidly emerging as one of the most attractive technologies. The technique is based on analyzing how light is absorbed and scattered by biological tissues, which relates to the tissue chemical composition and structure. One of the key advantages of DO is that it is non-invasive (it uses low-power near-infrared light). Moreover, it can be used to probe tissues at depths of up to a few centimeters and can even detect functional activation and oxygenation of brain or muscles. DO is, therefore, likely to assume a central role in the diagnosis and monitoring of patients both at the hospital and at home.
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Source: Phys.org