Hi Nathan,
I had a similar problem when simulating real metals - it turns out
that Meep will not accept negative permittivities without blowing up.
You have to sneak up on the negative permittivity by using the
polarizability feature of materials (see http://ab-initio.mit.edu/wiki/index.php/Meep_Tutorial/Material_dispersion)
. If you set the infinite permittivity to 1 you can create the
negative part using the Drude model (see Skinner et al., Appl. Optics
Vol. 45, No. 9, p 1943, 2006). Another member of the mailing list
helped me out with this.
Regards,
Ian
On 5 Mar 2009, at 17:00, meep-discuss-requ...@ab-initio.mit.edu wrote:
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Today's Topics:
1. meep installation problem (guile related) (Hua Bao)
2. Complex field in meep (adrian)
3. meep initial field (Michal Martin?)
4. regarding single pulse source (prabhat behere)
5. Unstable simulation with evanescent fields in active medium
(Nathan)
--
Message: 1
Date: Wed, 04 Mar 2009 22:20:42 -0500
From: Hua Bao h...@purdue.edu
Subject: [Meep-discuss] meep installation problem (guile related)
To: meep-discuss@ab-initio.mit.edu
Message-ID: 49af450a.9070...@purdue.edu
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Dear All,
I am a new user of meep.
I was trying to build up a meep executable but it shows error at the
configure step.
checking for guile-config... no
checking for readline in -lreadline... no
checking for dlopen in -ldl... yes
checking for scm_lt_dlinit in -lguile-ltdl... no
checking for dlopen in -lltdl... no
checking for gh_eval_str in -lguile... no
configure: error: linking to guile failed
The linux cluster (amd64) has guile installed. There is no problem to
run guile --version. Also, there is a libguile.so under /usr/lib64.
/usr/lib64/libguile-srfi-srfi-1-v-3.so
/usr/lib64/libguile-srfi-srfi-1-v-3.so.3
/usr/lib64/libguile-srfi-srfi-1-v-3.so.3.0.0
/usr/lib64/libguile-srfi-srfi-13-14-v-3.so
/usr/lib64/libguile-srfi-srfi-13-14-v-3.so.3
/usr/lib64/libguile-srfi-srfi-13-14-v-3.so.3.0.0
/usr/lib64/libguile-srfi-srfi-4-v-3.so
/usr/lib64/libguile-srfi-srfi-4-v-3.so.3
/usr/lib64/libguile-srfi-srfi-4-v-3.so.3.0.0
/usr/lib64/libguile-srfi-srfi-60-v-2.so
/usr/lib64/libguile-srfi-srfi-60-v-2.so.2
/usr/lib64/libguile-srfi-srfi-60-v-2.so.2.0.0
/usr/lib64/libguile.so.17
/usr/lib64/libguile.so.17.0.0
/usr/lib64/libguilereadline-v-17.so
/usr/lib64/libguilereadline-v-17.so.17
/usr/lib64/libguilereadline-v-17.so.17.0.0
**
I tried
setenv LDFLAGS -L/usr/lib64
It is still not working.
Also, it can not find lapack and blas on the cluster, either. And I am
very sure they are appropriately installed.
Can anyone give me some suggestions on this problem?
Thanks,
Hua
--
Message: 2
Date: Thu, 5 Mar 2009 13:12:48 +0800 (CST)
From: adrian hiaquar...@yahoo.com.tw
Subject: [Meep-discuss] Complex field in meep
To: meep-discuss@ab-initio.mit.edu
Message-ID: 825480.96270...@web73705.mail.tp2.yahoo.com
Content-Type: text/plain; charset=utf-8
? Hi Meep users and Steven:
? ? I know this question has been discussed but I can't find the
answer to previous poster.
? ? My question is:
??? 1. what is the definition of complex field in FDTD. Is it just
E0*exp(j(wt - kr)) and the real field and imaginary field correspond
to real part and imaginary part, respectively?
? If so, if we set force-complex-fields? false, then the real
field we normally got is E0 times cos(wt - kr)?
? ? ? I try to reach Complex field in meep? but it requires
password. so I can't find the definition of complex fields in meep.
The purpose for getting complex field is to get the far field
patterns from the near field patterns calculated by meep
Thanks in advanced
Adrian
??
__
?Yahoo!??2.0? http://tw.mg0.mail.yahoo.com/dc/landing
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Message: 3
Date: Thu, 5 Mar 2009 08:33:59 +0100
From: Michal Martin? cmelak9...@centrum.cz
Subject: [Meep-discuss] meep initial field
To: meep-discuss@ab-initio.mit.edu
Message-ID: 01c99d64$bf8dee10$6f01a...@michalp4
