Re: [Meep-discuss] Negative Permittivity?

2018-01-04 Thread Ardavan Oskooi
On 01/03/2018 01:07 PM, Priscilla Kelly wrote: I would like to probe a material with a pulse whose frequency has an epsilon = -.3 + .002i. I have tested the system with an epsilon of 1 and everything works as expected. A negative, frequency-independent epsilon will yield

[Meep-discuss] Negative Permittivity?

2018-01-03 Thread Priscilla Kelly
Hello, I would like to probe a material with a pulse whose frequency has an epsilon = -.3 + .002i. I have tested the system with an epsilon of 1 and everything works as expected. I changed epsilon like so: (define-param r -.3) (define-param i .002) (set! default-material (make medium