Vitkin I A, Woolsey J, Wilson B C, Anderson R R
Hamilton Regional Cancer Centre, Ontario, Canada.
Photochem Photobiol. 1994 Apr;59(4):455-62. doi: 10.1111/j.1751-1097.1994.tb05064.x.
The optical properties and the thermal diffusivity of natural cuttlefish (Sepia officinalis) melanin have been measured. The optical absorption and scattering properties of melanin particles were determined at 580 nm and 633 nm, using photometric and photothermal techniques. For the photometric studies, the absorption and the transport scattering coefficients were determined from the measurements of diffuse reflectance and transmittance. The scattering anisotropy was obtained from an additional measurement of the total attenuation coefficient and independently obtained by goniometry. For photothermal studies, pulsed photothermal radiometry was used to deduce the absorption and transport scattering coefficients via a model based on optical diffusion theory. Pulsed photothermal radiometry was also used to provide the thermal diffusivity of solid melanin pressed pellets.
已对天然乌贼(Sepia officinalis)黑色素的光学性质和热扩散率进行了测量。利用光度法和光热技术,在580纳米和633纳米波长下测定了黑色素颗粒的光吸收和散射特性。对于光度学研究,通过漫反射率和透射率的测量来确定吸收系数和输运散射系数。散射各向异性是通过对总衰减系数的额外测量获得的,并通过测角术独立得到。对于光热研究,采用脉冲光热辐射测量法,通过基于光扩散理论的模型来推导吸收系数和输运散射系数。脉冲光热辐射测量法还用于测定压制的固体黑色素颗粒的热扩散率。