Optical constants of OHARA - PHM (Phosphate, medium-index)
S-PHM51
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5759016-0.010553544λ^{2}+0.013895937λ^{-2}+0.00026498331λ^{-4}-1.9680543\text{×}10^{-06}λ^{-6}+1.0989977\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -6.88e-06 1.5e-08 -3.45e-13 8.32e-07 -2.61e-10 0.0 nd: 1.617001 Vd: 62.800809 glass_code: 617628 glass_status: special density: 3.53 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 9.7e-06 K-1 - temperature_range: 20 300 °C coefficient: 1.11e-05 K-1 dPgF: 0.0031 climatic_resistance: 2.0 acid_resistance: 51.2 phosphate_resistance: 4.0
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets