Optical constants of OHARA - LAM (Lanthanum, medium-index)
S-LAM54
Wavelength:
µm
(0.34–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.84213306λ^2}{λ^2-0.0094399322}+\frac{0.175468631λ^2}{λ^2-0.0395281122}+\frac{1.25750878λ^2}{λ^2-86.5463013}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 4.27e-06 1.66e-08 -3.72e-11 4.44e-07 5.21e-10 0.257 nd: 1.756998 Vd: 47.823170 glass_code: 757478 density: 4.08 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.7e-06 K-1 - temperature_range: 20 300 °C coefficient: 6.9e-06 K-1 dPgF: -0.0076 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