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Lee S.,Korea Advanced Institute of Science and Technology | Kim K.,Korea Advanced Institute of Science and Technology | Lee Y.,Daejeon Dongsin Science High School | Park S.,Daejeon Dongsin Science High School | And 5 more authors.
Journal of Biomedical Optics | Year: 2015

We present optical measurements of morphology and refractive indexes (RIs) of human downy arm hairs using three-dimensional (3-D) quantitative phase imaging techniques. 3-D RI tomograms and highresolution two-dimensional synthetic aperture images of individual downy arm hairs were measured using a MachZehnder laser interferometric microscopy equipped with a two-axis galvanometer mirror. From the measured quantitative images, the RIs and morphological parameters of downy hairs were noninvasively quantified including the mean RI, volume, cylinder, and effective radius of individual hairs. In addition, the effects of hydrogen peroxide on individual downy hairs were investigated. © 2015 Society of Photo-Optical Instrumentation Engineers. Source

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