Optical constants of LASF9
N-LASF9 (SCHOTT)
Wavelength:
µm
(0.365–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.00029547λ^2}{λ^2-0.0121426017}+\frac{0.298926886λ^2}{λ^2-0.0538736236}+\frac{1.80691843λ^2}{λ^2-156.530829}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.05e-06 1.02e-08 -2.38e-11 9.19e-07 1.18e-09 0.257
nd: 1.85025
Vd: 32.17
glass_code: 850322.441
glass_status: standard
density: 4.41 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.37e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.38e-06 K-1
dPgF: 0.0037
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 2.0
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