표 1. | Table 1. 회절계수가 발산하는 조건[10] | Conditions where the diffraction coefficient is singularity[10].

Singular term Condition
cot ( π ψ s + ψ i 2 n ) ψi≤(n-1)π, ψs=π+ψi
cot ( π + ψ s ψ i 2 n ) ψi≥(n-1)π, ψs=ψi-π
cot ( π ψ s ψ i 2 n ) ψi≤(n-1)π, ψs=π-ψi
cot ( π + ψ s + ψ i 2 n ) ψi≥(n-1)π, ψs=(2n-1)π-ψi