Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF82L
Wavelength:
µm
(0.300–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9384022-0.011000275λ^{2}+0.026895091λ^{-2}-0.00074423432λ^{-4}+0.00016294737λ^{-6}-7.3175367\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.22e-06 1.91e-08 -1.81e-11 3.77e-07 8.76e-10 0.292
nd: 1.734852
Vd: 48.782341
glass_code: 735488
density: 4.1 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7e-06 K-1
dPgF: -0.0104
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)