Optical constants of SCHOTT - LaF (Lanthanum flint)
P-LAF37
Wavelength:
µm
(0.32–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.76003244λ^2}{λ^2-0.00938006396}+\frac{0.248286745λ^2}{λ^2-0.0360537464}+\frac{1.15935122λ^2}{λ^2-86.4324693}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
nd: 1.7555
Vd: 45.66
glass_code: 755457.399
glass_status: standard
density: 3.987 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.26e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.8e-06 K-1
dPgF: -0.008
Comments
suitable for precision molding
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets