AtomicDensityMatrix`
AtomicDensityMatrix`

OpticalField

OpticalField[ω, a]

gives a complex time‐dependent electric field with angular frequency ω, real amplitude a, and default polarization.

OpticalField[ω,a,pol]

gives a field with polarization parameters pol.

OpticalField[{ω,k),{a,φ},pol]

gives a spatially dependent plane‐wave field with angular wavenumber k and phase φ.

Details and Options

  • The following options can be given:
  • PolarizationVector {1, 0, 0}reference polarization vector
    PropagationVector {0, 0, 1}unit wave vector
    Parameterization "AngleEllipticity"parameterization scheme for polarization
    CartesianCoordinates {Xx, Yy, Zz}symbols used to represent Cartesian coordinates
    TimeVariable Automaticsymbol used to represent the time variable
  • Possible values for the Parameterization option are "AngleEllipticity", "RatioPhase", and "Stokes".
  • The polarization of the field is specified in reference to the unit vectors , given by the value of the option PolarizationVector, and =, where is the unit vector specified by the option PropagationVector.
  • In the "AngleEllipticity" parameterization, the polarization parameters pol are specified as {α,ϵ}, where α is the polarization angle (relative to with respect to rotation about ) and ϵ is the ellipticity. If instead of a list a single value is specified, it is taken as the value of α, with ϵ assumed to be zero.
  • In the "RatioPhase" parameterization, the polarization parameters are specified as {χ,ϕ}, where , and and are the field amplitudes of the components along and , respectively, and ϕ is the relative phase angle between the components. If instead of a list a single value is specified, it is taken as the value of χ, with ϕ assumed to be zero.
  • In the "Stokes" parameterization, the polarization parameters are specified as {s1,s2,s3}, where s1, s2, and s3 are the normalized Stokes parameters relative to the axes and .

Examples

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Basic Examples  (1)

Default optical field:

Explicitly specify all parameters in the angle-ellipticity parameterization:

If the ellipticity is omitted, it is assumed to be zero:

Options  (5)

CartesianCoordinates  (1)

Specify variables denoting the Cartesian coordinates:

Parameterization  (1)

Specify polarization using the ratio-phase parameterization:

Specify polarization using the Stokes parameterization:

PolarizationVector  (1)

Specify a reference polarization vector:

PropagationVector  (1)

Specify a unit propagation vector in the direction . The propagation and polarization vectors should be orthogonal, so we find the polarization vector that is perpendicular to both the propagation vector and :

TimeVariable  (1)

Specify a different time variable: