Dear Andrei
I agree with you that a point source is a current oscillating along x,y or
z-axis.
We can specify the electric current in x,y and z directions by Ex,Ey and Ez,
respectively. Furthermore, we can also define the magnetic current
in the same way. The arbitrary direction of the oscillating current can be
obtained by the vector summation of electric currents in x,y or z directions
with different amplitude. For example, if we want the electric current
oscillating 45 degree with respect to the x-axis, we may specify 2 electric
currents Ex and Ey with the same amplitude so that the total electric current
is 45 degree with respect to the x-axis.
More information about the source can be sound in Meep reference.
Best Regard,
P. Tapsanit
Department of Physics,
Tohoku university,
Japan.
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Subject: meep-discuss Digest, Vol 85, Issue 12
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Today's Topics:
1. Plane wave generation and definition of the point source
(Andrei Buin)
2. Re: Plane wave generation and definition of the point source
(martynas)
----------------------------------------------------------------------
Message: 1
Date: Wed, 20 Mar 2013 15:18:49 -0400
From: Andrei Buin <[email protected]>
To: [email protected]
Subject: [Meep-discuss] Plane wave generation and definition of the
point source
Message-ID: <[email protected]>
Content-Type: text/plain; charset="us-ascii"
Dear meep users,
I was wondering if by point source in meep is meant point current source
oscillating along given polarization vector such as Ex, Ey, or Ez ?
I presume proper way of defining the normal incidence plane wave is to have
a plane of these point sources ?
With Best Regards, Andrei Buin.
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Message: 2
Date: Thu, 21 Mar 2013 12:23:32 +0200
From: martynas <[email protected]>
To: [email protected]
Subject: Re: [Meep-discuss] Plane wave generation and definition of
the point source
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
As written in meep reference,
http://ab-initio.mit.edu/wiki/index.php/Meep_Reference#source, you
define a current.
If for example your plane wave travels in x direction (in x-y plane),
the best way is to set size of the source in y direction equal to a size
of lattice in y direction.
On 03/20/2013 09:18 PM, Andrei Buin wrote:
> Dear meep users,
>
> I was wondering if by point source in meep is meant point current source
> oscillating along given polarization vector such as Ex, Ey, or Ez ?
>
> I presume proper way of defining the normal incidence plane wave is to
> have a plane of these point sources ?
>
> With Best Regards, Andrei Buin.
>
>
>
> _______________________________________________
> meep-discuss mailing list
> [email protected]
> http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
>
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