Optical constants of SCHOTT - SF (Dense flint)
N-SF8
Wavelength:
µm
(0.37–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.55075812λ^2}{λ^2-0.0114338344}+\frac{0.209816918λ^2}{λ^2-0.0582725652}+\frac{1.46205491λ^2}{λ^2-133.24165}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.94e-06 9.7e-09 -2.34e-11 8.32e-07 1.15e-09 0.276
nd: 1.68894
Vd: 31.31
glass_code: 689313.290
glass_status: standard
density: 2.904 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.56e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.92e-06 K-1
dPgF: 0.0087
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 1.0
phosphate_resistance: 1.0
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets