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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF68C
Wavelength:
µm
(0.330 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.4376406-0.0115726315λ^{2}+0.0371406216λ^{-2}+0.000330923804λ^{-4}+7.3366651\text{×}10^{-05}λ^{-6}-1.36270312\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.16e-07 1.55e-08 4.75e-12 9.9e-07 1e-09 0.14
nd: 1.883001
Vd: 40.867939
glass_code: 883409
density: 5.34 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.7e-06 K-1
dPgF: -0.009
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)