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Optical constants of OHARA - NBH (Niobate, high-index)
S-NBH51
Wavelength:
µm
(0.33 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.71203689λ^2}{λ^2-0.0107724134}+\frac{0.255989588λ^2}{λ^2-0.0488593504}+\frac{1.81456998λ^2}{λ^2-136.359013}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.65e-06 8.19e-09 -2.95e-11 7.55e-07 1.01e-09 0.261
nd: 1.749504
Vd: 35.332480
glass_code: 750353
density: 3.29 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.2e-06 K-1
dPgF: -0.0025
climatic_resistance: 3.0
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