Optical constants of SCHOTT - SK (Dense crown)
N-SK5
Wavelength:
µm
(0.3–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.991463823λ^2}{λ^2-0.00522730467}+\frac{0.495982121λ^2}{λ^2-0.0172733646}+\frac{0.987393925λ^2}{λ^2-98.3594579}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.5e-06 1.22e-08 6.38e-11 2.46e-07 -3.34e-11 0.278
nd: 1.58913
Vd: 61.27
glass_code: 589613.330
glass_status: standard
density: 3.3 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 5.5e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 6.5e-06 K-1
dPgF: -0.0007
climatic_resistance: 3.0
stain_resistance: 1.0
acid_resistance: 4.4
alkali_resistance: 2.0
phosphate_resistance: 1.3
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets