winsomeharis86
Newbie level 5

I have a data for a material including its n(refractive index) and k(extinction coefficient) values in a text file which i renamed it to .nk extension.I need SILVACO to pick those nk values while it is simulating. But when i try to copy that file into the sopra directory of SILVACO it says that "You are not permitted to copy". Any idea how to add "nk" sopra file into the sopra directory in SILVACO?