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## Optical constants of OHARA - TIH (Titanate, high-index)

S-TIH57

Wavelength:
µm

(0.365015 – 2.400)

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

n
k
LogX
LogY
eV

### Derived optical constants

### Dispersion formula

$$n^2-1=\frac{2.21103256λ^2}{λ^2-0.0142330268}+\frac{0.450346986λ^2}{λ^2-0.0638573392}+\frac{2.47746663λ^2}{λ^2-161.9376}$$### Conditions & Spec sheet

n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -2.66e-06 1.11e-08 -1.56e-11 1.12e-06 1.58e-09 0.293 nd: 1.963000 Vd: 24.114400 density: 4.2 g/cm^{3}thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.5e-06 K^{-1}dPgF: 0.0187 climatic_resistance: 1.0 acid_resistance: 3.0 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