Huazhong Wang wrote:

> Hi,
> 
> i have a question about source. i haven't found answer even though i
> searched meep discussion list. so i post a new message. i need a a
> source which sends out a light ray with a certain direction. I need
> such a source to simulate snell's law. could meep do that?
> 
> thanks,
> 
> 
> 

You have to create a gaussian beam. Read

http://news.gmane.org/find-root.php?message_id=%3c20060430125018.50901.qmail%40web31701.mail.mud.yahoo.com%3e

and 

http://news.gmane.org/find-root.php?message_id=%3cf9c2d6730607180606h40b6f013yb58ea59c39274546%40mail.gmail.com%3e


JLS




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