Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
P-LASF50
Wavelength:
µm
(0.334–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.84910553λ^2}{λ^2-0.00999234757}+\frac{0.329828674λ^2}{λ^2-0.0387437988}+\frac{1.30400901λ^2}{λ^2-95.8967681}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 8.04e-06 1.2e-08 -2.19e-11 8.2e-07 9.08e-10 0.209
nd: 1.8086
Vd: 40.46
glass_code: 809405.454
glass_status: standard
density: 4.541 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.32e-06 K-1
dPgF: -0.0078
Comments
suitable for precision molding
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets