Optical constants of CDGM - K (Crown)
D-K9GT
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.567853792λ^2}{λ^2-0.00238581579}+\frac{0.702269689λ^2}{λ^2-0.0135348332}+\frac{1.08102455λ^2}{λ^2-107.748228}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 4.87e-06 1.55e-08 -1.35e-11 4.17e-07 5.2e-10 0.177 nd: 1.516330 Vd: 64.058952 glass_code: 516641 density: 2.41 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.3e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.8e-06 K-1 dPgF: -0.0027 climatic_resistance: 1.0
Comments
anneal rate:4°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets