Fig. 7.

Absorption coefficient ${\mu }_{\mathrm{a}}$ of Asian (a) epidermis, (b) dermis, and (c) subcutaneous fat are compared with the reported values in Caucasian and African skin in (i) the entire wavelength range and (ii) the magnified wavelength range. The crosses correspond to Caucasian epidermis, dermis, and subcutaneous fat.¹⁰ The open diamonds correspond to African epidermis.¹⁴ The open and closed triangles correspond to African dermis and Caucasian subcutaneous fat, respectively.¹¹ The error bars represent the standard deviation of the reported values.