Optical constants of OHARA - LAL (Lanthanum, low-index)
LAL14
Wavelength:
µm
(0.334 – 2.325)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.8274666-0.014568462λ^{2}+0.018525487λ^{-2}+0.0003748582λ^{-4}-7.1291749\text{×}10^{-06}λ^{-6}+6.7781934\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 25.0 °C n_d: 1.696796 V_d: 55.528037 glass_code: 697555 glass_status: preferred
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets