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Optical constants of OHARA - TIL (Titanate, low-index)
S-TIL1
Wavelength:
µm
(0.34 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.25088944λ^2}{λ^2-0.00883921279}+\frac{0.0997973327λ^2}{λ^2-0.0482685052}+\frac{1.20583504λ^2}{λ^2-137.414953}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.21e-06 1.02e-08 -4.37e-11 5.67e-07 5.97e-10 0.265
nd: 1.548141
Vd: 45.784277
glass_code: 548458
density: 2.54 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.01e-05 K-1
dPgF: 0.0012
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