Hello,

I have a very simple nonsequential model:

Source Point: power=10 W, coherence length=0, linear polarized: Jx=Jy=1, collimated light: cone angle=0

Detector rectangle: placed behind source, normal incidence, number of pixels=1, polarization=2 for measuring power of y-polarized light

Then I have a merit function:

NSDD for clearing the detector

NSTR for making the rey trace

NSDC for measuring nonsquential coherent data

I was expecting to get Ey (y-component of the E-field vector), if I take Pix=0, Data=2 as parameters for NSDC.

But I got 1,581 as result. From my understanding the result should be Sqrt(10)*cos(45°)=2,236. What's wrong here?

If I take Pix=0, Data=3 as parameters for NSDC I get 2,5 as result. Data=3 should calculate the power.

Because power is proportional to amplitude of E-Field vector and 1,581^2=2,5 this is consistent.

But according to Malus Law I was expecting to get 10W * (cos(45°))^2 = 5W.

I would be very happy if someone can help me clarifying this.

Thanks in advance and kind regards

Dirk

**Best answer by Angel Morales**