Optical constants of OHARA - LAL (Lanthanum, low-index)
S-LAL61
Wavelength:
µm
(0.29–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.11073292λ^2}{λ^2-0.00464181248}+\frac{0.859347773λ^2}{λ^2-0.0192989261}+\frac{1.26707433λ^2}{λ^2-87.3917698}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 3.12e-06 1.34e-08 -3.54e-11 4.23e-07 4.31e-10 0.226 nd: 1.740999 Vd: 52.636502 glass_code: 741527 density: 4.04 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 5.7e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7e-06 K-1 dPgF: -0.0096 climatic_resistance: 1.0 acid_resistance: 51.0 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