Optical constants of SCHOTT - LaF (Lanthanum flint)
N-LAF33
Wavelength:
µm
(0.32 – 2.5)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2-1=\frac{1.79653417λ^2}{λ^2-0.00927313493}+\frac{0.311577903λ^2}{λ^2-0.0358201181}+\frac{1.15981863λ^2}{λ^2-87.3448712}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: 8.17e-06 1.24e-08 -1.65e-11 7.11e-07 8.59e-10 0.21 n_d: 1.78582 V_d: 44.05 glass_code: 786441.436 glass_status: standard density: 4.36 g/cm3 coefficient_of_thermal_expansion_1: 5.6e-06 K-1 coefficient_of_thermal_expansion_2: 6.7e-06 K-1 ΔP_gF: -0.0071 climatic_resistance: 1.0 stain_resistance: 2.0 acid_resistance: 52.2 alkali_resistance: 1.0 phosphate_resistance: 3.0
Comments
suitable for precision molding
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets