version 0.012


Photonic - A perl package for calculations on photonics and metamaterials.

Copyright (C) 1916 by W. Luis Mochán

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA

    Instituto de Ciencias Físicas, UNAM
    Apartado Postal 48-3
    62251 Cuernavaca, Morelos


   use Photonic::LE::S::EpsTensor;
   my $eps=Photonic::LE::S::EpsTensor->new(
                     epsilon=>$e, geometry=>$g);
   my $epsilonTensor=$epsTensor;


Calculates the dielectric tensor for a given fixed Photonic::Geometry structure as a function of the dielectric functions of the components.


  • new(epsilon=>$e, geometry=>$g, nh=>$nh, smallH=>$smallH, smallE=>$smallE, keepStates=>$k)

    Initializes the structure.

    $e PDL::Complex is the dielectric function as a complex scalar field

    $g Photonic::Geometry describing the structure

    $nh is the maximum number of Haydock coefficients to use.

    $smallH and $smallE are the criteria of convergence (default 1e-7) for the Haydock coefficients and the tensor calculations.

    $k is a flag to keep states in Haydock calculations (default 0)

ACCESORS (read only)

  • epsilon

    A PDL::Complex PDL giving the value of the dielectric function epsilon for each pixel of the system

  • keepStates

    Value of flag to keep Haydock states

  • nr

    Array of Photonic::LE::S::AllH structures, one for each direction

  • epsL

    Array of Photonic::LE::S::EpsL structures, one for each direction.

  • epsTensor

    The valuated dielectric tensor

  • nh

    The maximum number of Haydock coefficients to use.

  • converged

    Flags that the last calculation converged before using up all coefficients

  • smallH smallE

    Criteria of convergence for Haydock and epsilon calculations. 0 means don't check.

        *Check last remark*