Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF4LA
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.212551λ^2}{λ^2-0.011817254}+\frac{0.312542616λ^2}{λ^2-0.049586258}+\frac{1.56862457λ^2}{λ^2-115.52649}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.14e-06 1.37e-08 -2.92e-11 8.94e-07 8.6e-10 0.239
nd: 1.910820
Vd: 35.250340
glass_code: 911353
glass_status: standard
density: 5.07 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.5e-06 K-1
dPgF: -0.0024
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets