Re: Precision of calculated frequencies

wuqi <[email protected]>
Newsgroups gmane.comp.science.photonic-bands
Message-ID <[email protected]> 
Dear Steven,

   I have a similar question. 
   I am calculating a PC waveguide mode and the group v by taking dw/dk.
  As I decrease the k point step dk, the changing of dw is very small for the
slow light region. 

   How can I increase the # of significant point of the calculated frequencies?
  
  I am using a control .ctl file and (run-te) command.

  thank you
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