Advances in Materials Science and Engineering

Research Article

Ray-Tracing-Based Modeling of Clad-Removed Step-Index Plastic Optical Fiber in Smart Textiles: Effect of Curvature in Plain Weave Fabric

Detailed description of the parameters in Figure 9.


Parameter	Description

n_air, n_core, n_clad	Refractive index of air, core, and cladding, resp.
R_core, R_clad	Radii of core and cladding
p₀	Start point of ray vector x_ω,τ
p_c	Ray-to-interface collision point
p₁	Ray end position when there is no refractive index change
p_1,rfr	New position after refraction
p_1,tif	New position after total internal reflection (TIR)
θ₀	Ray incidence angle to interface
θ_1,rfrθ_1,tif	Ray angle after refraction/TIR
d₀, d_c, d₁, d_1,rfr, d_1,rfr	Distance from p₀, p_c, p₁, p_1,rfr, p_1,rfr to fiber central axis, resp.
r₀, r_c, r₁, r_1,rfr, r_1,rfr	Nearest point from p₀, p_c, p₁, p_1,rfr, p_1,rfr to fiber central axis, resp.
q₀, q_c, q₁, q_1,rfr, q_1,rfr	Nearest point from p₀, p_c, p₁, p_1,rfr, p_1,rfr to interface, resp.
	Parts of ray vector before and after collision