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Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF53
Wavelength:
µm
(0.280 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.97237085-0.0132859996λ^{2}+0.0235602874λ^{-2}+0.000319211658λ^{-4}+1.70425085\text{×}10^{-05}λ^{-6}-8.96802291\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 7.67e-06 2.36e-08 -1.95e-10 6.35e-07 3.67e-10 0.208
nd: 1.743306
Vd: 49.335808
glass_code: 743493
glass_status: standard
density: 4.26 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.01
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)