Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH53V
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.96600955λ^2}{λ^2-0.0107817785}+\frac{0.205143305λ^2}{λ^2-0.0463727869}+\frac{1.23200934λ^2}{λ^2-97.69406}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.36e-06 1.13e-08 -1.33e-11 8.08e-07 8.51e-10 0.236
nd: 1.806099
Vd: 40.929791
density: 4.41 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.8e-06 K-1
dPgF: -0.0039
climatic_resistance: 1.0
acid_resistance: 51.2
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