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Optical Propagation Methods

Here are some useful optical propagation methods.

OpticalPropagation.angularspectrum — Function
angularspectrum(Uin, d, λ, lx, ly)

calculate the propagation light field based on the angular spectrum.

Arguments

  • Uin::AbstractArray{<:Number,2}: Complex array of input complex amplitude.
  • d::Real: Distance to propagate in metres.
  • λ::Real: Wavelength of light to propagate.
  • lx::Real: The physical size of the input data along the x-axis.
  • ly::Real: The physical size of the input data along the y-axis.

Returns

  • ::Array{<:Number,2}: Complex amplitude data after propagation.
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angularspectrum(Uin::MonoLightField2D, d::Unitful.Length) -> MonoLightField2D

calculate the propagation light field for MonoLightField2D based on the angular spectrum.

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angularspectrum(d)

represent an angularspectrum propagation functor with the specified distance.

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OpticalPropagation.fresnel1 — Function
fresnel1(Uin, d, λ, lx, ly)

calculate the propagation light field based on the Fresnel diffraction with single Fourier transform.

Arguments

  • Uin::AbstractArray{<:Number,2}: Complex array of input complex amplitude.
  • d::Real: Distance to propagate in metres.
  • λ::Real: Wavelength of light to propagate.
  • lx::Real: The physical size of the input data along the x-axis.
  • ly::Real: The physical size of the input data along the y-axis.

Returns

(Uout, (lxo, lyo))
  • Uout::Array{<:Number,2}: Complex amplitude data after propagation.
  • lxo::Real: The physical size of the diffraction data along the x-axis.
  • lyo::Real: The physical size of the diffraction data along the y-axis.
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fresnel1(Uin::MonoLightField2D, d::Unitful.Length) -> MonoLightField2D

calculate the propagation light field for MonoLightField2D based on the Fresnel diffraction with single Fourier transform.

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fresnel1(d)

represent a fresnel1 propagation functor with the specified distance.

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OpticalPropagation.fresnel2 — Function
fresnel2(Uin, d, λ, lx, ly)

calculate the propagation light field based on the Fresnel diffraction with double Fourier transform.

Arguments

  • Uin::AbstractArray{<:Number,2}: Complex array of input complex amplitude.
  • d::Real: Distance to propagate in metres.
  • λ::Real: Wavelength of light to propagate.
  • lx::Real: The physical size of the input data along the x-axis.
  • ly::Real: The physical size of the input data along the y-axis.

Returns

  • ::Array{<:Number,2}: Complex amplitude data after propagation.
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fresnel2(Uin::MonoLightField2D, d::Unitful.Length) -> MonoLightField2D

calculate the propagation light field for MonoLightField2D based on the Fresnel diffraction with double Fourier transform.

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fresnel2(d)

represent a fresnel2 propagation functor with the specified distance.

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