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Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF51
Wavelength:
µm
(0.340 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.82740564-0.0113834621λ^{2}+0.0217208712λ^{-2}+0.000385985738λ^{-4}+1.31857828\text{×}10^{-05}λ^{-6}+6.83783132\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.02e-06 1.89e-08 -1.3e-10 4.46e-07 1.77e-10 0.281
nd: 1.700000
Vd: 48.109868
glass_code: 700481
density: 3.82 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.4e-06 K-1
dPgF: -0.0038
climatic_resistance: 2.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)