Optical constants of OHARA - LAL (Lanthanum, low-index)
LAL18
Wavelength:
µm
(0.334–2.325)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.934239-0.015232638λ^{2}+0.01968169λ^{-2}+0.00052343197λ^{-4}-1.9855288\text{×}10^{-05}λ^{-6}+1.1787472\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C nd: 1.729157 Vd: 54.683134 glass_code: 729547 glass_status: preferred
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets