Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH51
Wavelength:
µm
(0.33–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.82586991λ^2}{λ^2-0.00935297152}+\frac{0.283023349λ^2}{λ^2-0.0373803057}+\frac{1.35964319λ^2}{λ^2-100.655798}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 5.3e-06 1.13e-08 2.62e-12 8.44e-07 1.11e-09 0.169 nd: 1.785896 Vd: 44.202637 glass_code: 786442 density: 4.4 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 5.9e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 7.2e-06 K-1 dPgF: -0.0069 climatic_resistance: 1.0 acid_resistance: 4.0 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