Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF3
Wavelength:
µm
(0.350–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.33260614-0.0142217301λ^{2}+0.0366299952λ^{-2}+0.00102037909λ^{-4}-3.17481272\text{×}10^{-06}λ^{-6}+5.76556277\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.1e-06 1.77e-08 -9.07e-11 8.88e-07 3.04e-10 0.222
nd: 1.855449
Vd: 36.598050
glass_code: 855366
density: 4.5 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.4e-06 K-1
dPgF: -0.0053
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets