Optical constants of OHARA - FTL
S-FTL10
Wavelength:
µm
(0.33–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.10542993λ^2}{λ^2-0.00669004168}+\frac{0.116184325λ^2}{λ^2-0.0360840691}+\frac{1.15396111λ^2}{λ^2-137.546485}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -6.27e-06 1.69e-08 -3.74e-11 4.3e-07 4.02e-10 0.238
nd: 1.501372
Vd: 56.421009
glass_code: 501564
glass_status: special
density: 2.46 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.9e-06 K-1
dPgF: 0.0031
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