define "Propagation constant" in the case of Grating

  1. mrshahi
    mrshahi
    Hello dear friends
    I have a trouble to define "Propagation constant" in the case of Grating..!
    How should "Propagation constant" be defined in port1,2 (Electromagnetic Waves, Frequency Domain) at COMSOL multiphysics? the file is attached
    Please help me 😣
Results 1 to 1 of 1