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

S-TIH13

Wavelength:
µm

(0.37 – 2.4)

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

n
k
LogX
LogY
eV

### Derived optical constants

### Dispersion formula

$$n^2-1=\frac{1.62224674λ^2}{λ^2-0.0118368386}+\frac{0.293844589λ^2}{λ^2-0.0590208025}+\frac{1.99225164λ^2}{λ^2-171.959976}$$### Conditions & Spec sheet

n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -1.65e-06 1.1e-08 -3.44e-11 8.43e-07 1.07e-09 0.3 nd: 1.740769 Vd: 27.789359 glass_code: 741278 density: 3.1 g/cm^{3}thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.3e-06 K^{-1}- temperature_range: 20 300 °C coefficient: 9.6e-06 K^{-1}dPgF: 0.013 climatic_resistance: 1.0 acid_resistance: 1.0 phosphate_resistance: 1.0

### Comments

Recommended - Lightweight

### References

OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)

See also OHARA glass data sheets