HINTS AND TIPS

Q: How can anti-reflective coatings be modeled when simulating photodetectors in ATLAS/Luminous? How can detection efficiency be plotted?

A: Earlier version of ATLAS were able to handle refraction and reflection of rays during the optical simulation in Luminous. New features have been added to ATLAS version 4.4.25 or higher to include coherence and so allow simulation of the effects of anti-reflective coating.

The simulation of photodetector efficiency versus wavelength is done using the LAMBDA parameter of the SOLVE statement. This parameter sets the wavelength for each solution. A new ray trace is done at each solution point to recalculate the optical intensities. The syntax might be: