Optical constants of SCHOTT - BK (Borosilicate crown)
BK7G18
Wavelength:
µm
(0.38–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.26538542λ^2}{λ^2-0.00813104078}+\frac{0.0144191073λ^2}{λ^2-0.0543303226}+\frac{1.00323028λ^2}{λ^2-102.821166}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.52e-06 1.37e-08 -1.26e-11 4.36e-07 4.17e-10 0.194 nd: 1.51975 Vd: 63.58 glass_code: 520636.252 glass_status: special density: 2.52 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.22e-06 K-1 dPgF: 0.0007 stain_resistance: 0.0 acid_resistance: 1.0 alkali_resistance: 2.0
Comments
inquiry glass
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets