optics{ global_reflectivity{ } }¶
using: \(\mathrm{\textcolor{ForestGreen}{optional\;within\;the\;scope}}\)
items: \(\mathrm{maximum\;1}\)
This group defines the reflectance spectrum \(R(\lambda)\) of the modelled device for the light entering the system.
Important
The following general conditions must be satisfied when defining optics{ global_reflectivity{ } }
Exactly one of the following must be defined: database_spectrum{ }, import_spectrum{ }, constant_spectrum{ } within this group.
Maintained Keywords¶
The keywords below are available in at least one of currently published releases and are planned to be included also in the next release.
database_spectrum{ }¶
using: \(\mathrm{\textcolor{ForestGreen}{optional\;within\;the\;scope}}\)
items: \(\mathrm{maximum\;1}\)
Importing the spectrum from the database or external files.
database_spectrum{ name }¶
using: \(\mathrm{\textcolor{WildStrawberry}{required\;within\;the\;scope}}\)
type: \(\mathrm{character\;string}\)
Name of the spectrum contained in the database.
import_spectrum{ }¶
using: \(\mathrm{\textcolor{ForestGreen}{optional\;within\;the\;scope}}\)
items: \(\mathrm{maximum\;1}\)
Importing spectrum from a file
Important
The following general conditions must be satisfied when defining import_spectrum{ }
The global group import{ } is specified in the input file.
import_spectrum{ import_from }¶
using: \(\mathrm{\textcolor{WildStrawberry}{required\;within\;the\;scope}}\)
type: \(\mathrm{character\;string}\)
Path to a spectrum for importing
import_spectrum{ cutoff }¶
using: \(\mathrm{\textcolor{WildStrawberry}{required\;within\;the\;scope}}\)
type: \(\mathrm{choice}\)
choices:
yes
;no
If set to yes
, then the values of the spectrum which are outside the definition interval are set to zero.
Otherwise, the spectrum is extrapolated as a constant with the value on the boundary of the imported data.
import_spectrum{ energy_spectrum }¶
using: \(\mathrm{\textcolor{ForestGreen}{optional\;within\;the\;scope}}\)
type: \(\mathrm{choice}\)
choices:
yes
;no
default:
no
If set to yes
, then the imported spectrum is assumed to be given as a function of energy.
Otherwise, the spectrum is assumed to be given as a function of wavelength.
constant_spectrum{ }¶
using: \(\mathrm{\textcolor{ForestGreen}{optional\;within\;the\;scope}}\)
items: \(\mathrm{maximum\;1}\)
Specify a constant reflectance spectrum \(R(\lambda) = \mathrm{const}\)
constant_spectrum{ reflectivity }¶
using: \(\mathrm{\textcolor{WildStrawberry}{required\;within\;the\;scope}}\)
type: \(\mathrm{real\;number}\)
values:
(0.0, 1.0]
unit: \(\mathrm{-}\)
default:
1.0
The constant value of the reflectivity
Examples¶
global_reflectivity{
database_spectrum{
name = "Al0.80Ga0.20As"
}
import_spectrum{
import_from = "filename"
cutoff = yes # yes/no: If yes, set values outside definition interval to zero.
# (default=?)
}
constant_spectrum{
reflectivity = 0.5 # real value >= 0.0 and <= 1.0 (dimensionless)
}