Optical constants of OHARA - LAL (Lanthanum, low-index)
S-LAL8
Wavelength:
µm
(0.29–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.30663291λ^2}{λ^2-0.00611862448}+\frac{0.571377253λ^2}{λ^2-0.021272147}+\frac{1.24303605λ^2}{λ^2-90.6285686}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.24e-06 1.31e-08 -3.71e-11 3.81e-07 4.99e-10 0.252 nd: 1.712995 Vd: 53.867058 glass_code: 713539 density: 3.79 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.1e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.4e-06 K-1 dPgF: -0.0084 climatic_resistance: 3.0 acid_resistance: 52.0 phosphate_resistance: 3.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets