Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF75A
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.50615126λ^2}{λ^2-102.994725}+\frac{2.18809221λ^2}{λ^2-0.0127716105}+\frac{0.297955776λ^2}{λ^2-0.0569661668}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.63e-06 1.36e-08 -3.31e-11 9.08e-07 1.12e-09 0.265
nd: 1.903660
Vd: 31.314970
glass_code: 904313
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
dPgF: 0.0029
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets