optics{ emission_spectrum{} }¶
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.
- refractive_index (optional)
averaged-out refractive index \(n_r\) (optional, dimensionless). 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.
- type:
real
- value:
double
- default:
The value of the substrate is used
- energy_broadening_gaussian (optional)
- type:
real
- unit:
eV
- value:
non-negative double (>= 0.000001 if not zero)
- default:
0
- energy_broadening_lorentzian (optional)
- type:
real
- unit:
eV
- value:
non-negative double (>= 0.000001 if not zero)
- default:
0
- output_spectra{}
computed types of spectra within semi-classical models:
- emission (optional)
emission spectra are outputted
Note
The model is not suitable for systems with occupation inversion, above the threshold. It can be successfully used for modeling, e.g., LEDs.
- type:
choice
- values:
yes or no
- default:
yes
- gain (optional)
gain spectra are outputted
- type:
choice
- values:
yes or no
- default:
yes
- decadic_gain (optional)
decadic gain spectra are outputted
- type:
choice
- values:
yes or no
- default:
no
- absorption (optional)
absorption spectra are outputted
- type:
choice
- values:
yes or no
- default:
yes
- decadic_absorption (optional)
decadic absorption spectra are outputted
- type:
choice
- values:
yes or no
- default:
no
- stimulated_emission (optional)
stimulated emission spectra are outputted
- type:
choice
- values:
yes or no
- default:
no
- spectra_over_energy (optional)
selected spectra are outputted over energy
- type:
choice
- values:
yes or no
- default:
yes
- spectra_over_wavelength (optional)
selected spectra are outputted over wavelength
- type:
choice
- values:
yes or no
- default:
yes
- spectra_over_frequency (optional)
selected spectra are outputted over frequency
- type:
choice
- values:
yes or no
- default:
no
- spectra_over_wavenumber (optional)
selected spectra are outputted over wavenumber
- type:
choice
- values:
yes or no
- default:
no
- photon_spectra (optional)
- type:
choice
- values:
yes or no
- default:
yes
- power_spectra (optional)
- type:
choice
- values:
yes or no
- default:
no
- output_photon_density (optional)
output emitted photon density in units of [\(\mathrm{cm}^{-3}\mathrm{s}^{-1}\)] (optional) (emitted_photon_density.dat)
- type:
choice
- values:
yes or no
- default:
no
- output_power_density (optional)
output emitted power density in units of [\(\mathrm{W}/\mathrm{cm}^3\)] (optional) (emitted_power_density.dat)
- type:
choice
- values:
yes or no
- default:
no