I found on comsol database one online webinar/workshop where a terahertz metamaterial was modeled and there, input "(px*py/4/2/Z0_const)*E0^2" this equation is used. I need to know why is this used?
Dear Fatematuz Zahura,
The following info may be helpful:
https://www.researchgate.net/publication/335261647_On_the_formation_of_gap_solitons_in_nonlinear_electromagnetic_metamaterials
https://physicstoday.scitation.org/doi/10.1063/PT.3.4222
https://www.britannica.com/topic/metamaterial
Fatematuz Zahura I have answered this question in context in your other thread.
https://www.researchgate.net/post/How_to_select_the_input_equation_for_composing_metamaterials_what_are_they_based_on
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