NAME

Photonic::Roles::Metric

VERSION

version 0.013

COPYRIGHT NOTICE

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

    mochan@fis.unam.mx

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

SYNOPSIS

    use Photonic::WE::R2::Metric;
    my $gGG=Photonic::WE::R2::Metric->new(
            geometry=>$geometry, epsilon=>$eps,
            wavenumber => $q, $wavevector=>k);
    f($gGG->value);

DESCRIPTION

Calculates the retarded metric tensor g_{GG'}^{ij} for use in the calculation of the retarded Haydock coefficients for the wave equation.

METHODS

• new(geometry=>$g, epsilon=>$e, $wavenumber=>$q, $wavevector=>$k);

  Create a new Ph::WE::R2::Metric object with Geometry $g, dielectric function of the reference $e, vacuum wavenumber $q=omega/c and wavevector $k. $q and $k are real.

ACCESORS (read only)

• geometry

  The Photonic::Types::Geometry object that describes the geometry of the system.

• epsilon

  A reference real dielectric function.

• wavenumber

  The vacuum wavenumber, w/c, 2PI/lambda.

• wavevector

  The wavevector.

• value

  The actual metric tensor as a complex PDL. Provided by implementation.