NAME

Photonic::LE::NR2::SH

VERSION

version 0.012

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::LE::NR2::SH;
   my $nrsh=Photonic::LE::NR2::SH->
             new(shp=>$shp, epsA1=>$epsA1, epsB1=>$epsB1,
                 epsA2=>$epsA2, epsB2=>$epsB2);
   my $PL_G=$nrsh->selfConsistentL_G;

DESCRIPTION

Calculates the non retarded SH polarizations and fields of arbitrary a periodic composite made up of centrosymmetric isotropic component materials, using the continuous dipolium model.

METHODS

  • new(shp=>$shp, epsA1=>$epsA1, epsB1=>$epsB1, epsA2=>$epsA2, epsB2=>epsB2);

    Initializes the structure

    $shp is a Photonic::LE::NR2::SHP object with the invariant part of the data structures for the calculations

    $epsA1, $epsB1, $epsA2, $epsB2 are the dielectric functions of the A and B materials at the fundamental and the second harmonic frequency

ACCESORS (read only)

  • shp

    Invariant part of SHG calculator.

  • ndims nrf densityA densityB density nr

    Accesors handled by shp

  • epsA1, epsB1

    Dielectric functions of materials A and B at the fundamental frequency

  • epsA2, epsB2

    Dielectric functions of materials A and B at the second harmonic frequency

  • alpha1

    Polarizabity field at the fundamental frequency

  • alpha2

    Polarizabity field at the second harmonic frequency

  • u1

    Spectral variable at fundamental frequency

  • u2

    Spectral variable at second harmonic frequency

  • field1

    longitudinal field at fundamental

  • field2

    longitudinal field at second harmonic

  • dipolar

    Dipolar contribution to SH polarization field

  • quadrupolar

    SH quadrupolar contribution to SH polarization field

  • external

    External contribution to SH polarization field (quadrupolar + dipolar)

  • external_G

    External SH polarization field in reciprocal space

  • externalL_G

    Longitudinal projection of external polarization field in reciprocal space

  • HP

    Photonic::LE::NR2::AllH structure to calculate Haydock basis for non linear polarization

  • externalL_n

    External SH polarization field represented in Haydock basis

  • selfConsistentL_n

    SH self consistent longitudinal polarization in Haydock representation

  • selfConsistentL_G

    SH self consistent longitudinal polarization components in reciprocal space

  • selfConsistentVecL_G

    SH self consistent longitudinal polarization vector field projection in reciprocal space

  • selfConsistentVecL

    SH self consistent longitudinal polarization vector projection field in real space

  • P2

    SH self consistent total polarization vector field in real space

ACCESORS (read/write)

  • filterflag

    Flag to filter results in reciprocal space to smooth non linear polarization using the field (nrf) filter.