Optical constants of CDGM - TF (Special flint)
H-TF8
Wavelength:
µm
(0.330–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.6056299λ^2}{λ^2-0.0103174707}+\frac{1.32554029λ^2}{λ^2-108.474162}+\frac{0.265358825λ^2}{λ^2-0.0488739276}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.81e-07 1.7e-08 -3.95e-11 7.69e-07 5.75e-10 0.256
nd: 1.720460
Vd: 34.757746
glass_code: 720348
glass_status: preferred
density: 3.51 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
dPgF: -0.0014
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets