θp

θs

θi

π−θMax

(lfc3/2G)−π (0.1208)

π−(lfc3/2G) (−0.1208)

π−(lfc3/2G) (−0.1208)

θMax

2π−(lfc3/2G) (3.02079)

(lfc3/2G) (3.26239)

(lfc3/2G) (3.26239)