hi. the unit in MEEP and in MPB is the same. in meep and mpb , the period is 1 the each frequency that you achieved form mpb, you can use it to meep directly . for example if .2 is an eigen frequency of a pc that you achieved it form mpb, you can set the frequency of the source to .2 in the range of photonic band gap, there is no eigen-frequency of a pc. then you can not set the frequency of the source in this range except for photonic crystal defect like line defect or point defect. if you want to understand units in meep and mpb please refer to units in meep and mpb in their tutorials. for slow light you should use the group velocity of the line defect mode of pc waveguide via mpb.refer to MPB reference. because the velocity of light in mpb is 1 , after extract the group velocity, you should inverse it to achieve group index best regards
On Sun, Dec 18, 2011 at 9:00 AM, <[email protected]>wrote: > Send meep-discuss mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of meep-discuss digest..." > > > Today's Topics: > > 1. meep vc mpb (C?cero Juli?o) > 2. band diagram from MPB to MEEP (C?cero Juli?o) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 17 Dec 2011 15:51:13 -0300 > From: C?cero Juli?o <[email protected]> > To: [email protected] > Subject: [Meep-discuss] meep vc mpb > Message-ID: > <CAHea7j-puvs8c-JfKOj=5=dphu8tnrxdmkfmu2b7c8wrzcq...@mail.gmail.com > > > Content-Type: text/plain; charset="iso-8859-1" > > Dear users, > > I' d like to use a band diagram from MPB to extract information about what > frequencies are important to some phonomena I want to observe with MEEP. > For instance, if we looking for a slow light regime, we would pay attention > for frequencies ranges where the curve wXk is horizontal, because dw/dk > would be nearly zero. But, here is my problem. In band diagrams from MPB, > how can I convert the frequencies to MEEP? i.e., how can I convert the > units in band diagram from MPB to MEEP units? Another example: if, in a > band diagram from MPB, we have a band gap from 0.2 to 0.3, what is this > range in MEEP units? > > Thank you. > > -- > > C?cero Juli?o da Silva Junior > ____________________________________ > Institute of Physics - UFAL > www.ufal.br > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://ab-initio.mit.edu/pipermail/meep-discuss/attachments/20111217/0d1a75cf/attachment-0001.html > > > > ------------------------------ > > Message: 2 > Date: Sat, 17 Dec 2011 17:31:07 -0300 > From: C?cero Juli?o <[email protected]> > To: [email protected] > Subject: [Meep-discuss] band diagram from MPB to MEEP > Message-ID: > <CAHea7j93_C=Wr0Wcn29bL3F=etygtskjony-xartxf6vb_n...@mail.gmail.com > > > Content-Type: text/plain; charset="iso-8859-1" > > In this paper > http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-20-21155, > the authors show a band diagram (I think they used MPB) and so they make a > choice about the best frequency to use in a MEEP simulation. If they really > used MPB to make the band diagram, how can we se the correspondent > frequency in MEEP? i.e., how can we take a especific frequency from MPB > band diagram and use it in a MEEP simulation? > > > -- > > C?cero Juli?o da Silva Junior > ____________________________________ > Institute of Physics - UFAL > www.ufal.br > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://ab-initio.mit.edu/pipermail/meep-discuss/attachments/20111217/ce725da7/attachment-0001.html > > > > ------------------------------ > > _______________________________________________ > meep-discuss mailing list > [email protected] > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss > > End of meep-discuss Digest, Vol 70, Issue 11 > ******************************************** >
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