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Table 1.
Fraunhofer propagation symmetry properties (Goodman 2005).
| Pupil-plane electric field | Focal-plane electric field | |||
|---|---|---|---|---|
| Epup = Acos(θ)+iAsin(θ) | Efoc = a + ib | |||
| Term | Term symmetry | A, θ symmetry | Term | Term symmetry |
| Acos(θ) | Even | (Aeven, θeven), (Aeven, θodd) | ib | Even |
| Acos(θ) | Odd | (Aodd, θeven), (Aodd, θodd) | a | Odd |
| iAsin(θ) | Even | (Aeven, θeven), (Aodd, θodd) | a | Even |
| iAsin(θ) | Odd | (Aeven, θodd), (Aodd, θeven) | ib | Odd |
Notes. These are the Fourier properties multiplied with a factor −i (
).
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