Table 2 Phase distribution of different Pancharatnam-Berry lenses

1^a

1064

θ₁

2^a

396.8

θ₂ = 2.681θ₁

3^a

1550

θ₃ = 0.686θ₁

4^b

3383.5

θ₄ = θ₁-θ₃ = 0.314θ₁

5^b

632.8

θ₅ = θ₁-θ₂ = −1.681θ₁

6^b

532.8

θ₆ = θ₂-θ₃ = 1.995θ₁

7^b

450

θ₇ = θ₁-θ₂-θ₃ = −2.367θ₁