Need help implementing finite difference method for BPM

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yashabyadav
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I am trying to apply finite difference scheme for Beam propagation method by following this paper.

I was wondering if anyone can share their code if they have implemented this method. I can share my code which is not working as expected and can get some insights if possible.
 
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yashabyadav said:
I am trying to apply finite difference scheme for Beam propagation method by following this paper.

I was wondering if anyone can share their code if they have implemented this method. I can share my code which is not working as expected and can get some insights if possible.
Please post a full description and your questions.

a) The article you linked to costs $40 and I doubt that anybody is willing to pay this.
b) Teach me the finite-element method is far too broad. We cannot provide entire lectures.
 
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