Hi all. I 'm sorry for silly question. I have σ such that J=σE in SI unit. I want to convert unit from SI to meep one.
I found the formula from *https://meep.readthedocs.io/en/latest/Materials/#conductivity-and-complex <https://meep.readthedocs.io/en/latest/Materials/#conductivity-and-complex>* ,but I cannot see which one is correct. σ_D=(a/c)*(σ/ε_r)*ε_0 or σ_D=(a/c)*(σ/ε_r *ε_0 ) Thank you for reading.
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