J Photochem Photobiol B. Sep;57() Measurement of the penetration depths of red and near infrared light in human "ex vivo" tissues. Stolik S(1), Delgado JA, Pérez A, Anasagasti L. Author information: (1)Centro de Desarrollo de Equipos e Instrumentos Científicos, Habana Vieja, Cuba. stolik@fis spaintitangell.cu.cc May be the following definition help you to identify the penetration depth. - the optical penetration depth equal the reciprocal of absorption coefficient. 1 Recommendation. Greg Curtzwiler. 2 years ago. Greg Curtzwiler. Iowa State University. This will depend on the aspect ratio, concentration, and the effective surface area. The chemical composition of the water, mainly Fe oxidation state and concentration, is the responsible for the high attenuation of the UV radiation UVR. Electrical and Computer Engineering. This describes how deeply the radiation penetrates the surface of the plastic before heat is generated. Optical depth of Lake Caviahue is not typical of high elevation lakes but is more similar to low elevation shallow lakes of the Andean region. If there is not enough absorber, this tends quiste en el pene result in optical absorption. One conventional characterization method uses high-speed optical cameras to penetration the images of the motion of the liquid droplets. However, when semicrystalline thermoplastics are used, the crystallites interrupt and reflect the radiation. Optical properties and light penetration in a deep, naturally acidic, iron rich lake: Lago Caviahue (Patagonia, Argentina). Baffico, Gustavo The depth of the 1% incident radiation was dependent of wavelength, showing its maximum of m at nm, compared to m and m at nm and nm, respectively. If the power density of the incident light is sufficiently high to induce a significant temperature rise in the irradiated tissue, then it is also needed the knowledge of the thermal properties of the tissue for a complete understanding of the therapeutic effects. The thermal penetration depth of several human tissues has been. OCT techniques Direct measurement of the scattering phase function Human tissue optical properties estimates Determination of optical properties of blood Measurements of tissue penetration depth and light dosimetry Refractive index measurements 3 Optical Properties of.