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Optical constants of OHARA - NBH (Niobate, high-index)
S-NBH8
Wavelength:
µm
(0.33 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.61344136λ^2}{λ^2-0.0106386752}+\frac{0.257295888λ^2}{λ^2-0.0487071624}+\frac{1.98364455λ^2}{λ^2-159.784404}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.76e-07 9.72e-09 -3.07e-11 8.22e-07 9.16e-10 0.251
nd: 1.720467
Vd: 34.707984
glass_code: 720347
density: 3.19 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1e-05 K-1
dPgF: -0.0019
climatic_resistance: 2.0
acid_resistance: 1.0
phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets