Optical constants of OHARA - LAM (Lanthanum, medium-index)
S-LAM60
Wavelength:
µm
(0.33–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.60673056λ^2}{λ^2-0.0077504614}+\frac{0.36641564λ^2}{λ^2-0.0289967611}+\frac{1.31761804λ^2}{λ^2-93.0720709}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 6.57e-06 1.45e-08 -3.29e-11 4.46e-07 4.6e-10 0.256 nd: 1.743198 Vd: 49.339444 glass_code: 743493 density: 4.06 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.4e-06 K-1 - temperature_range: 20 300 °C coefficient: 6.6e-06 K-1 dPgF: -0.0085 climatic_resistance: 2.0 acid_resistance: 52.0 phosphate_resistance: 2.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets