Hi, Rui, I also always need to compute it from the basics. 25 nm corresponds to 0.25 units, therefore one unit corresponds to 1e-7 m,
400 nm is roughly 700 THz in reality, therefore you would rescale the frequency to 700e12 * 1e-7 = 7e7, but MEEP defines speed of light as 1 instead of 3e8 m/s, so you need fcen = 7e7/3e8 = 2.5e-1. Fwidth should obviously be something similar to fcen in your case. Hope this is correct, Filip 2013/9/20, Rui La <larui...@gmail.com>: > Dear meep users, > > I want to get the result from 200nm to 700nm. My structure is a 2D cylinder > with radius equal to 0.25 in meep and 25nm in reality. How do I set my > frequency and fwidth? Thank you. > > Best, > > Rui > _______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
