Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH59
Wavelength:
µm
(0.29 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.51372967λ^2}{λ^2-0.00705246901}+\frac{0.702462343λ^2}{λ^2-0.0249488689}+\frac{1.33600982λ^2}{λ^2-100.085908}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 3.68e-06 1.12e-08 -3.17e-11 5.44e-07 6.16e-10 0.236 nd: 1.816000 Vd: 46.620561 glass_code: 816466 density: 5.07 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 6.3e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.6e-06 K-1 dPgF: -0.0092 climatic_resistance: 1.0 acid_resistance: 3.0 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets