Optical constants of OHARA - APL
S-APL1
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.2762403-0.0096874647λ^{2}+0.0092330378λ^{-2}+0.00038940853λ^{-4}-3.8018733\text{×}10^{-05}λ^{-6}+2.0693225\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -6.92e-06 1.28e-08 -1.19e-11 4.99e-07 -4.83e-10 0.09
nd: 1.517277
Vd: 69.563209
glass_code: 517696
glass_status: preferred
density: 2.59 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.15e-05 K-1
dPgF: 0.0034
climatic_resistance: 2.0
acid_resistance: 1.0
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