Optical constants of OHARA - LAH (Lanthanum, high-index)
L-LAH84P
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.83485816λ^2}{λ^2-0.009788482}+\frac{0.355717498λ^2}{λ^2-0.03837087}+\frac{1.37757002λ^2}{λ^2-109.71692}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 8.14e-06 9.68e-09 -3.1e-12 8.24e-07 8.84e-10 0.23 nd: 1.812250 Vd: 40.294279 density: 4.62 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.4e-06 K-1 dPgF: -0.0066 climatic_resistance: 2.0 acid_resistance: 51.3 phosphate_resistance: 2.2
Comments
Low Softening Temperature
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets