optics{ semiclassical_spectra{ } }#

Calling sequence

optics{ semiclassical_spectra{ } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • items: maximum 1

Dependencies

Functionality

Compute and output emission spectra calculated from energy-resolved densities \(n(x,E)\) and \(p(x,E)\) computed by energy_resolved_density{}. Radiative recombination rate reads \(R_\mathrm{radiative}(x,E)=C(x)\int dE_h\int dE_e\ n(x,E_e) p(x,E_h) \delta(E_e-E_h-E)\), where \(C(x)\) [\(\mathrm{cm}^3/\mathrm{s}\)] is the (material-dependent) radiative recombination parameter. “spectra” and “density” in the following refer to the integrals of \(R_\mathrm{radiative}\) over position and energy, respectively.

Nested keywords

refractive_index#

Calling sequence

optics{ semiclassical_spectra{ refractive_index = ... } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: real number

  • values: [1.0, ...)

  • unit: \(\mathrm{-}\)

  • default: substrate

Functionality

Average refractive index \(n_r\). Refractive index used for calculating gain and absorption spectra. The absorption/gain spectra is multiplied by the factor \(1/n_r^2\). The values for the optical dielectric constant from the database are not used yet at this point.

energy_broadening_gaussian#

Calling sequence

optics{ semiclassical_spectra{ energy_broadening_gaussian = ... } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: real number

  • values: [1e-6, ...)

  • unit: \(\mathrm{eV}\)

Functionality

—

energy_broadening_lorentzian#

Calling sequence

optics{ semiclassical_spectra{ energy_broadening_lorentzian = ... } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: real number

  • values: [1e-6, ...)

  • unit: \(\mathrm{eV}\)

Functionality

—

absorption#

Calling sequence

optics{ semiclassical_spectra{ absorption = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

If set to yes then absorption coefficient spectra are calculated for the entire device \(\alpha(E)\).

Note

Energy grid is defined within optics{ light_propagation{ } }.

Attention

This spectra are used for photogeneration mode when use_global_spectra{ } or use_local_spectra{ } is called.

emission#

Calling sequence

optics{ semiclassical_spectra{ emission = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

If set to yes then photon emission spectra are calculated for the entire device \(R_{rad}(E)\).

Note

Energy grid is defined within optics{ light_propagation{ } }.

local_absorption#

Calling sequence

optics{ semiclassical_spectra{ local_absorption = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

If set to yes then position-resolved absorption coefficient spectra are calculated for the entire device \(\alpha(x,E)\) which can be used for photogeneration model.

Note

Energy grid is defined within energy_grid{ }.

Attention

This spectra are used for photogeneration mode when use_computed_spectra{ } is called.

local_emission#

Calling sequence

optics{ semiclassical_spectra{ local_emission = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

If set to yes then position-resolved a photon emission spectra are calculated for the entire device \(R_{rad}(x,E)\) which can be used for photogeneration model.

Note

Energy grid is defined within energy_grid{ }.

output_spectra{ }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • items: maximum 1

Functionality

When this group is defined then optical spectra computed within semi-classical models (based on carrier densities) are saved to the output folder. The spectra are averaged over the entire simulation domain.

output_spectra{ im_epsilon }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ im_epsilon = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

The upper 30% of the spectra are cut off.

output_spectra{ absorption_coeff }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ absorption_coeff = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Absorption spectra are outputted, both positive and negative parts. The upper 30% of the spectra are cut off.

output_spectra{ decadic_absorption_coeff }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ decadic_absorption_coeff = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Decadic absorption spectra are outputted, both positive and negative parts. The upper 30% of the spectra are cut off.

output_spectra{ gain }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ gain = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Gain spectra are outputted, only the positive part. The upper 30% of the spectra are cut off.

output_spectra{ decadic_gain }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ decadic_gain = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Decadic gain spectra are outputted, only the positive part. The upper 30% of the spectra are cut off.

output_spectra{ emission_photons }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ emission_photons = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Photon emission spectra are outputted, only the positive part is shown. Stimulated emission assumes that all photon modes are occupied by one photon. Thus, not the actual stimulated emission in the device is calculated, but rather a spectral response similar to the gain.

Note

The model is not suitable for systems with occupation inversion, above the threshold. It can be successfully used for modeling, e.g., LEDs.

output_spectra{ emission_power }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ emission_power = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Power emission spectra are outputted, only the positive part is shown. Stimulated emission assumes that all photon modes are occupied by one photon. Thus, not the actual stimulated emission in the device is calculated, but rather a spectral response similar to the gain.

Note

The model is not suitable for systems with occupation inversion, above the threshold. It can be successfully used for modeling, e.g., LEDs.

output_spectra{ spectra_over_energy }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ spectra_over_energy = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

selected spectra are outputted over energy

output_spectra{ spectra_over_frequency }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ spectra_over_frequency = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over frequency

output_spectra{ spectra_over_wavenumber }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ spectra_over_wavenumber = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over wavenumber

output_spectra{ spectra_over_wavelength }#

Calling sequence

optics{ semiclassical_spectra{ output_spectra{ spectra_over_wavelength = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over wavelength

output_local_spectra{ }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • items: maximum 1

Functionality

When this group is defined then optical spectra computed within semi-classical models (based on carrier densities) are saved to the output folder. The spectra are position-dependent within the simulation domain.

output_local_spectra{ im_epsilon }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ im_epsilon = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

The upper 30% of the spectra are cut off.

output_local_spectra{ absorption_coeff }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ absorption_coeff = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Absorption spectra are outputted, both positive and negative parts. The upper 30% of the spectra are cut off.

output_local_spectra{ decadic_absorption_coeff }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ decadic_absorption_coeff = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Decadic absorption spectra are outputted, both positive and negative parts. The upper 30% of the spectra are cut off.

output_local_spectra{ gain }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ gain = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Gain spectra are outputted, only the positive part. The upper 30% of the spectra are cut off.

output_local_spectra{ decadic_gain }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ decadic_gain = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Decadic gain spectra are outputted, only the positive part. The upper 30% of the spectra are cut off.

output_local_spectra{ emission_photons }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ emission_photons = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

Photon emission spectra are outputted, only the positive part is shown. Stimulated emission assumes that all photon modes are occupied by one photon. Thus, not the actual stimulated emission in the device is calculated, but rather a spectral response similar to the gain.

Note

The model is not suitable for systems with occupation inversion, above the threshold. It can be successfully used for modeling, e.g., LEDs.

output_local_spectra{ emission_power }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ emission_power = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Power emission spectra are outputted, only the positive part is shown. Stimulated emission assumes that all photon modes are occupied by one photon. Thus, not the actual stimulated emission in the device is calculated, but rather a spectral response similar to the gain.

Note

The model is not suitable for systems with occupation inversion, above the threshold. It can be successfully used for modeling, e.g., LEDs.

output_local_spectra{ spectra_over_energy }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ spectra_over_energy = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: yes

Functionality

selected spectra are outputted over energy

output_local_spectra{ spectra_over_frequency }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ spectra_over_frequency = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over frequency

output_local_spectra{ spectra_over_wavenumber }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ spectra_over_wavenumber = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over wavenumber

output_local_spectra{ spectra_over_wavelegth }#

Calling sequence

optics{ semiclassical_spectra{ output_local_spectra{ spectra_over_wavelegth = "..." } } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

selected spectra are outputted over wavelegth

output_photon_density#

Calling sequence

optics{ semiclassical_spectra{ output_photon_density = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Output emitted photon density in \(\mathrm{cm}^{-3}\mathrm{s}^{-1}\) to emitted_photon_density.dat

output_power_density#

Calling sequence

optics{ semiclassical_spectra{ output_power_density = "..." } }

Properties

  • usage: \(\mathrm{\textcolor{ForestGreen}{optional}}\)

  • type: choice

  • values: yes or no

  • default: no

Functionality

Output emitted power density in \(\mathrm{W}/\mathrm{cm}^3\) to emitted_power_density.dat