Re: H1 Photonic Crystal nanocavity in PhC slab

Dear Sakshi,

I don't have a ctl file for an H1 cavity, so I cannot help you with 
this, however I can answer your last question about the lattice constant.
MPB uses normalized units which are defined in terms of the lattice 
constant (which is why a=1). Therefore I would not recommend that you 
change 'a', instead it is better to renormalise all your other 
dimensions, by dividing them with 'a'.  Otherwise you will have to check 
that al your other units are still correct.
As an example, if your lattice constant is 265 nm and your hole radius 
is 80nm, then the radius to be used in your script should be r/a=80/265 
(approximately 0.3019).

I hope this helps
Regards
Sebastian Schulz

On 19/11/2013 12:00, [email protected] wrote:
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>     1. H1 Photonic Crystal nanocavity in PhC slab (sakshi aneja)
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> Message: 1
> Date: Tue, 19 Nov 2013 14:37:42 +0530
> From: sakshi aneja <[email protected]>
> To: [email protected]
> Subject: [MPB-discuss] H1 Photonic Crystal nanocavity in PhC slab
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>
> Hello Dr. Steven and MPB users,
>
> I am new to the software MPB. I am doing my M.Tech research in Photonic
> Crystals and am trying to make a *High Q H1 photonic crystal nanocavity
> that has small modal volume and high external coupling efficiency on a
> photonic crystal slab*.
> I have gone through all the examples given in the software such as point
> defect, hole-slab,etc. I am facing problems to design a H1 PhC nanocavity
> on a PCS.
> I would appreciate if you can send me a ctl file of a H1 cavity in PCS that
> calculates Q factor, mode volume and external coupling efficiency, so that
> I can go through that example to understand cavity design.
> I also want to ask, how can I change my Lattice constant 'a', as by default
> its value is 1 and I want to make it 265 nm.
>
> Thanks in advance!
>
> Looking forward for your reply.
>
> Regards
> Sakshi
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-- 
Dr. Sebastian Schulz
Postdoctoral Fellow
Department of Physics
University of Ottawa
[email protected]
Tel: 613 562 5800 7139