Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF53B
Wavelength:
µm
(0.350 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.25780649-0.0123377843λ^{2}+0.0355171622λ^{-2}+0.000705690228λ^{-4}+4.3498733\text{×}10^{-05}λ^{-6}+1.95613611\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.9e-06 2.08e-08 -8.84e-11 8.92e-07 6.66e-10 0.24
nd: 1.833996
Vd: 37.229136
glass_code: 834372
glass_status: standard
density: 4.54 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.0041
climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)