Optical constants of OHARA - BAL (Barium, low-index)
BAL14
Wavelength:
µm
(0.360 – 0.9)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.421996-0.009200161λ^{2}+0.01374045λ^{-2}+0.000348582λ^{-4}-1.664649\text{×}10^{-05}λ^{-6}+1.313751\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 25.0 °C n_d: 1.568832 V_d: 56.339266 glass_code: 569563 glass_status: preferred density: 3.08 g/cm3 coefficient_of_thermal_expansion_1: 7.3e-06 K-1 coefficient_of_thermal_expansion_2: 8.5e-06 K-1 ΔP_gF: -0.0025
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets