Re: help!
"Steven G. Johnson" <[email protected]>
| Newsgroups | gmane.comp.science.photonic-bands |
|---|---|
| Message-ID | <[email protected]> |
On Jul 8, 2009, at 10:29 PM, lfwang wrote: > Dear Steven and MPB-users: > > I need to simulate a core-shell fcc structure ( core with > dielectric constant epsilon1 + shell with dielectric constant > epsilon2) by mpb. But I don't know how to define dielectric constant > of spheres(core+shell). Just specify 2 concentric spheres, the first with the shell radius and epsilon2 and the second with the core radius and epsilon1. This will give you epsilon1 surrounded by a shell of epsilon2. Steven