Optical constants of OHARA - NBH (Niobate, high-index)
L-NBH54
Wavelength:
µm
(0.37 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.00722652λ^2}{λ^2-0.0135705124}+\frac{0.442086773λ^2}{λ^2-0.0591808873}+\frac{3.37287426λ^2}{λ^2-219.832665}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: 3.5e-07 6.74e-09 -1.38e-11 1.01e-06 1.37e-09 0.298 nd: 1.902000 Vd: 25.101413 glass_code: 902251 glass_status: special density: 3.64 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 8.1e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 9.9e-06 K-1 dPgF: 0.0108 climatic_resistance: 4.0 acid_resistance: 2.0 phosphate_resistance: 1.0
Comments
Low Softening Temperature
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets