Re: [Meep-discuss] In plane anisotropic conductivity of Black phosphorus

2020-11-17 Thread Steven G. Johnson
Yes, because the susceptibility class allows you to specify the numerator σ as 
a tensor.

> On Nov 17, 2020, at 12:19 PM, Nikolaos Matthaiakakis  
> wrote:
> 
> Can the same be achieved for materials that have in plane anisotropic 
> conductivity? The difficulty I am having is that I am unware of how I can 
> define these properties in Meep for a material like Black phosphorus that 
> involves in plane anisotropy and requires a tensor to properly describe its 
> conductivity.

___
meep-discuss mailing list
meep-discuss@ab-initio.mit.edu
http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss

[Meep-discuss] In plane anisotropic conductivity of Black phosphorus

2020-11-17 Thread Nikolaos Matthaiakakis
Dear all and Prof. Johnson,

I have written a code that studies the polarization dependent scattering 
properties of a plasmonic nanodisks. As a test material I used gold from the 
material library included with Meep and everything works well. For the actual 
simulation that I am interested in I need to include the dispersive in plane 
anisotropic conductivity of single layer Black phosphorus.

As explained here 
https://www.mail-archive.com/meep-discuss@ab-initio.mit.edu/msg06578.html and 
in the meep FAQ the properties of dispersive 2D materials can be fitted with 
the use of the DrudeSusceptibility and LorentzianSusceptibility while defining 
the structure thickness as 1/resolution and multiplying the conductivity by the 
resolution.

Can the same be achieved for materials that have in plane anisotropic 
conductivity? The difficulty I am having is that I am unware of how I can 
define these properties in Meep for a material like Black phosphorus that 
involves in plane anisotropy and requires a tensor to properly describe its 
conductivity.

I was wondering if there is an available example or information that I may have 
missed.

I apologize for taking your time once again and I am grateful for your help. 
Thank you for providing such an excellent simulation tool free of charge.

Best wishes
Nikolaos
___
meep-discuss mailing list
meep-discuss@ab-initio.mit.edu
http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss