Numerical model for light propagation and light intensity distribution inside coated fused silica capillaries

► Presentation of numerical modelling software for light propagation in capillaries. ► Calculations of light paths through multi-layered cylindrical structures. ► Calculations of light intensity distribution inside light attenuating liquids. ► Light ray path can be predicted theoretically with high degree of accuracy. ► Light intensity distributions correlated well both numerically and geometrically.