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## Optical constants of OHARA - NBH (Niobate, high-index)

S-NBH52V

Wavelength:
µm

(0.320 – 2.400)

### Complex refractive index (*n+ik)*

n
k
LogX
LogY
eV

### Derived optical constants

### Dispersion formula

$$n^2-1=\frac{1.51336868λ^2}{λ^2-0.00987077827}+\frac{0.212341478λ^2}{λ^2-0.0462843662}+\frac{1.54149143λ^2}{λ^2-126.97851}$$### Conditions & Spec sheet

n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.73e-06 7.81e-09 -1.96e-11 7.27e-07 8.31e-10 0.248 nd: 1.673000 Vd: 38.256077 density: 3.01 g/cm^{3}thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.7e-06 K^{-1}dPgF: -0.0039 climatic_resistance: 1.0 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