Optical constants of OHARA - LAL (Lanthanum, low-index)
LAL9
Wavelength:
µm
(0.334–2.325)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.8062228-0.01325307λ^{2}+0.019370701λ^{-2}+0.00013885534λ^{-4}+2.596583\text{×}10^{-05}λ^{-6}-9.3551589\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C nd: 1.691002 Vd: 54.843220 glass_code: 691548 glass_status: preferred
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets