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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF52LA
Wavelength:
µm
(0.340 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.1753525-0.00848750283λ^{2}+0.0371301651λ^{-2}-0.00109609062λ^{-4}+0.00024418582λ^{-6}-8.94583294\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.32e-06 1.75e-08 -7.96e-11 7.4e-07 2.75e-10 0.221
nd: 1.809995
Vd: 41.000073
glass_code: 810410
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.3e-06 K-1
dPgF: -0.0066
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)