Optical constants of OHARA - LAL (Lanthanum, low-index)
S-LAL59
Wavelength:
µm
(0.28–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.13962742λ^2}{λ^2-0.00493294862}+\frac{0.805227838λ^2}{λ^2-0.020247996}+\frac{1.29488061λ^2}{λ^2-93.4746507}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 5.63e-06 2.04e-08 -5.33e-12 5.86e-07 7.5e-10 0.176 nd: 1.733997 Vd: 51.470570 glass_code: 734515 density: 4.04 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.5e-06 K-1 - temperature_range: 20 300 °C coefficient: 6.8e-06 K-1 dPgF: -0.0096 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