Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK6A
Wavelength:
µm
(0.320 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.81484052-0.0147823622λ^{2}+0.0190209745λ^{-2}+0.000336628211λ^{-4}+1.35687736\text{×}10^{-05}λ^{-6}-5.85525604\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.73e-06 1.81e-08 4.81e-11 6.35e-07 -7.14e-10 0.117 nd: 1.693501 Vd: 53.347668 glass_code: 694534 density: 3.59 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.3e-06 K-1 dPgF: -0.006 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)