Broadband AR for a Cone of Light
Here we consider a coating on glass that reflects only 0.5% of a cone of light for a range of wavelengths
from 420 to 680 nm. The cone axis is normal to the glass. The cone has an F-number of 0.778, which
means the half-angle is 40 degrees. An uncoated glass surface reflects 4.4% of this cone of light.
We use a feature new to version 3.5: cone-angle targets. As optimization targets we use|
Here is the design, starting with the layer closest to glass, and with thicknesses given in nm:
TIO2 11.04 SIO2 44.43 TIO2 34.99 SIO2 28.25 TIO2 30.46 SIO2 104.92
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