Optical constants of OHARA - LAL (Lanthanum, low-index)
LAL56
Wavelength:
µm
(0.334–2.325)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.7596566-0.010659546λ^{2}+0.018646689λ^{-2}+0.00076127484λ^{-4}-5.3585332\text{×}10^{-05}λ^{-6}+3.7820929\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C nd: 1.677898 Vd: 50.723364 glass_code: 678507 glass_status: preferred
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets