NAME

Photonic::NonRetarded::SHChiTensor

VERSION

version 0.003

SYNOPSIS

use Photonic::NonRetarded::SHChiTensor;
my $chi=Photonic::NonRetarded::SHChiTensor->new(geometry=>$g,
        $densityA=>$dA, $densityB=>$dB, nh=>$nh, nhf=>$nhf,
        filter=>$f, filterflag=>$ff); 
my $chiTensor=$chi->evaluate($epsA1, $epsB1, $epsA2, $epsB2);

DESCRIPTION

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

METHODS

• new(geometry=>$g, densityA=>$da, densityB=>$db, nh=>$nh, nhf=>$nhf[, filter=>$ff][, small=>$small])

  Initializes the structure.

  $g Photonic::Geometry describing the structure

  $da, $db number densities for material A and B (in which units?)

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

  $nhf is the maximum number of Haydock coefficients for the field calculation.

  $ff is a (maybe smooth) cutoff function in reciprocal space to smothen the geometry.

  $small is the criteria of convergence (default 1e-7)

• evaluate($epsA1, $epsB1, $epsA2, $epsB2)

  Returns the macroscopic second Harmonic susceptibility function for a given value of the dielectric functions of the host $epsA and the =particle $epsB at the fundamental 1 and second harmonic 2 frequency.

ACCESORS (read only)

• epsA1, epsB1, epsA2, epsB2

  Dielectric functions of components A and B at fundamental and SH frequency

• nrshp

  Array of Photonic::NonRetarded::SHP Haydock SH polarization calculators, one for each direction

• chiTensor

  The dielectric tensor

• nh

  The maximum number of Haydock coefficients to use.

• nhActual

  The actual number of Haydock coefficients used in the last calculation

• converged

  Flags that the last calculation converged before using up all coefficients

• small

  Criteria of convergence. 0 means don't check.

ACCESORS (missing)

• u1, u2

  Spectral variables