Optical constants of SUMITA - PG
K-PG375
Wavelength:
µm
(0.300–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.345943-0.0077317211λ^{2}+0.011783664λ^{-2}+0.00025239185λ^{-4}-1.2352344\text{×}10^{-05}λ^{-6}+8.7540057\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.51e-05 1.45e-09 -9.02e-11 5.44e-07 3.99e-10 0.176
nd: 1.54250
Vd: 62.9
glass_code: 543629
density: 2.9 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1.29e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.6e-05 K-1
dPgF: 0.0036
climatic_resistance: 2.0
acid_resistance: 3.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book