Re: [Meep-discuss] Puzzling results for reflection spectrum

2015-02-11 Thread Gib Bogle
coarse. Do I need to reduce the time step? Thanks Gib From: Filip Dominec [filip.domi...@gmail.com] Sent: Wednesday, 11 February 2015 9:29 p.m. To: Gib Bogle Subject: Re: [Meep-discuss] Puzzling results for reflection spectrum This looks good to me

[Meep-discuss] Puzzling results for reflection spectrum

2015-02-10 Thread Gib Bogle
I am getting puzzling inconsistencies between results for the reflection spectrum of a scatterer when I vary the width of the Gaussian pulse. Since I am a beginner this probably stems from my lack of understanding of something. The scattering antenna is a metal loop with a small gap (i.e. the

Re: [Meep-discuss] Puzzling results for reflection spectrum

2015-02-10 Thread Filip Dominec
Hi, if you properly divide the reflected amplitude by the incident amplitude, the reflection of a linear system should indeed be the same, independent of the source duration and spectrum. If it is not, one possible cause may be that you clip the time record while the source was still running, or

Re: [Meep-discuss] Puzzling results for reflection spectrum

2015-02-10 Thread Gib Bogle
. From: Filip Dominec [filip.domi...@gmail.com] Sent: Wednesday, 11 February 2015 10:49 a.m. To: Gib Bogle Cc: meep-discuss@ab-initio.mit.edu Subject: Re: [Meep-discuss] Puzzling results for reflection spectrum Hi, if you properly divide the reflected amplitude by the incident amplitude