Spherical Aberration Interferograms
The following figures are example interferograms with their corresponding wavefront aberration and Zernike coefficients in waves.
W020=1
W040=0
Z3=1/2
Z8=0 | W020=0
W040=1
Z3=1/2
Z8=1/6 | W020=0
W040=4
Z3=2
Z8=2/3 |
W020=0
W040=0
Z3=0
Z8=0 | W020=-1
W040=1
Z3=0
Z8=1/6 | W020=-4
W040=4
Z3=0
Z8=2/3 |
W020=-1
W040=0
Z3=-1/2
Z8=0 | W020=-2
W040=1
Z3=-1/2
Z8=1/6 | W020=-8
W040=4
Z3=-2
Z8=2/3 |
W111=−4 and Z1=−4 for all of these interferograms.
Astigmatism Interferograms
θ=Tilt orientation
Wavefront Coefficients
W020=0
W111=4 at θ
W222=−1 at 90°
Zernike Coefficients
| Z0=−1/4 | Z3=−1/4 |
| Z1=4 cosθ | Z4=1/2 |
| Z2=4sinθ | Z5=0 |
Wavefront Coefficients
W020=0
W111=1 at θ
W222=−4 at 90°
Zernike Coefficients
| Z0=−1 | Z3=−1 |
| Z1= cosθ | Z4=2 |
| Z2=sinθ | Z5=0 |
Wavefront Coefficients
W020=2
W111=1 at θ
W222=−4 at 90°
Zernike Coefficients
| Z0=0 | Z3=0 |
| Z1= cosθ | Z4=2 |
| Z2=sinθ | Z5=0 |
