Imagine that we wanted to more accurately model our SWP dichroic coating at 45 degrees of incidence. By adding more data to our table coating, we could model:

  • The transition region
  • The polarization dependence of the coating
  • The actual amount of transmission and reflection (rather than assuming that they are either 100% or 0%)

 

If this is our SWP coating performance at an angle of incidence of 45 degrees:

Transmission vs. wavelength for a typical SWP coating

Here is a more detailed version of the corresponding table coating:

 

TABLE SWP_REALISTIC

ANGL 45

WAVE 0.350 0.06 0.00 0.94 1.00

WAVE 0.355 0.02 0.00 0.98 1.00

WAVE 0.360 0.01 0.00 0.99 1.00

WAVE 0.365 0.06 0.00 0.94 1.00

WAVE 0.370 0.04 0.00 0.96 1.00

WAVE 0.375 0.00 0.00 1.00 1.00

WAVE 0.380 0.03 0.00 0.97 1.00

WAVE 0.385 0.07 0.00 0.93 1.00

WAVE 0.390 0.04 0.00 0.96 1.00

WAVE 0.395 0.00 0.00 1.00 1.00

WAVE 0.400 0.03 0.00 0.97 1.00

WAVE 0.405 0.07 0.00 0.93 1.00

WAVE 0.410 0.05 0.00 0.95 1.00

WAVE 0.415 0.00 0.02 1.00 0.98

WAVE 0.420 0.03 0.03 0.97 0.97

WAVE 0.425 0.07 0.02 0.93 0.98

WAVE 0.430 0.06 0.00 0.94 1.00

WAVE 0.435 0.05 0.02 0.95 0.98

WAVE 0.440 0.07 0.04 0.93 0.96

WAVE 0.445 0.08 0.06 0.92 0.94

WAVE 0.450 0.07 0.05 0.93 0.95

WAVE 0.455 0.15 0.00 0.85 1.00

WAVE 0.460 0.25 0.02 0.75 0.98

WAVE 0.465 0.21 0.13 0.79 0.87

WAVE 0.470 0.08 0.20 0.92 0.80

WAVE 0.475 0.70 0.16 0.30 0.84

WAVE 0.480 0.90 0.06 0.10 0.94

WAVE 0.485 0.98 0.13 0.02 0.87

WAVE 0.490 0.98 0.53 0.02 0.47

WAVE 0.495 0.99 0.84 0.01 0.16

WAVE 0.500 0.99 0.90 0.01 0.10

WAVE 0.505 1.00 0.94 0.00 0.06

WAVE 0.510 1.00 0.96 0.00 0.04

WAVE 0.515 1.00 0.97 0.00 0.03

WAVE 0.520 1.00 0.97 0.00 0.03

WAVE 0.525 1.00 0.97 0.00 0.03

WAVE 0.530 1.00 0.97 0.00 0.03

WAVE 0.535 1.00 0.97 0.00 0.03

WAVE 0.540 1.00 0.97 0.00 0.03

WAVE 0.545 1.00 0.965 0.00 0.035

WAVE 0.550 1.00 0.96 0.00 0.04

 

On the left below is the more detailed version of the SWP coating. On the right is our original idealized SWP coating:

Transmission vs. Wavelength plot for more realistic SWP coating  Transmission vs. Wavelength for the original idealized SWP coating

Obviously, the coating detail has improved greatly. The coating could be further improved by adding even more data points if desired.