I am trying to create a transient model for an IF sensorand Iam not sure how to define the transmissivity and absorptivityofeach material. For example, the spectral radiation willtravelthrough a lens and into a thermal-pile. The lens shouldabsorb someof the radiation but transmit about 80% of it down tothethermo-pile and surrounding enclosure.

Is there a way to define these properties in COSMOS? Thanksfor the help!SolidworksSimulation