Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF55D
Wavelength:
µm
(0.320 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.27258827-0.0129423515λ^{2}+0.032844328λ^{-2}+0.000183315988λ^{-4}+7.64020197\text{×}10^{-05}λ^{-6}-1.75379429\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.74e-07 1.44e-08 3.75e-12 9.75e-07 1.1e-09 0.102
nd: 1.834810
Vd: 42.727483
glass_code: 835427
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.1e-06 K-1
dPgF: -0.0081
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)