Optical constants of OHARA - YGH
S-YGH52
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.1224406-0.015600077λ^{2}+0.023832255λ^{-2}+0.00072563954λ^{-4}-3.0563799\text{×}10^{-05}λ^{-6}+2.0883401\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.29e-06 1.57e-08 4.79e-12 6.43e-07 2.12e-10 0.137 nd: 1.786500 Vd: 50.001717 glass_code: 787500 glass_status: special density: 4.79 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.3e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.7e-06 K-1 dPgF: -0.0093 climatic_resistance: 1.0 acid_resistance: 4.0 phosphate_resistance: 1.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets