Effect of surface roughness on determination of tissue optical properties obtained by diffusion approximation.
A nylon bar with different surface roughness is used as a simulation sample of biological tissue for the determination of optical properties by using the spatially resolved steady-state diffuse reflection technique. The results obtained indicate that surface roughness has some effects on the determination of the optical properties of the nylon bar. The determined reduced scattering coefficient decreases with the decrease of the surface roughness of the nylon bar and goes to a constant for the lower surface roughness, and the determined absorption coefficient increases with the decrease of the surface roughness of the nylon bar. Consequently, the optical properties of the tissues obtained by the spatially resolved steady-state diffuse reflection technique should be modified.
Sun
Meixiu
M
The MOE Key Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials and Tianjian Key Laboratory of Photonics and Technology for Information Science, Nankai University, Tianjian, China. smeix2003@yahoo.com.cn
Zhang
Chunping
C
Hao
Zhaofeng
Z
Tian
Jianguo
J
D000042:Absorption; D000465:Algorithms; D003627:Data Interpretation, Statistical; D004058:Diffusion; D004867:Equipment Design; D007091:Image Processing, Computer-Assisted; D008027:Light; D015233:Models, Statistical; D055095:Optics and Photonics; D012031:Refractometry / Q000295:instrumentation / Q000379:methods; D013499:Surface Properties