Optical constants of SUMITA - BOC
K-BOC20
Wavelength:
µm
(0.36–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.8410887-0.015801048λ^{2}+0.055983447λ^{-2}+0.0030905124λ^{-4}-0.00016655999λ^{-6}+2.7794823\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -3.96e-07 1.14e-08 -3.48e-10 1e-06 9.73e-10 0.275
nd: 2.00540
Vd: 27.7
density: 4.95 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.5e-06 K-1
dPgF: 0.0064
climatic_resistance: 1.0
acid_resistance: 1.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book