Optical constants of OHARA - PBM (Plumbate, medium-index)
PBM27
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.6124109-0.0087316589λ^{2}+0.024857782λ^{-2}+0.00088778616λ^{-4}-9.2640255\text{×}10^{-06}λ^{-6}+4.5028723\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 5.245e-06 0.0 0.0 0.0 0.0 0.0 nd: 1.639799 Vd: 34.477127 glass_code: 640345 glass_status: preferred density: 3.78 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.8e-06 K-1 dPgF: 0.0018 acid_resistance: 1.0 phosphate_resistance: 2.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets