Optical constants of OHARA - APL
S-APL
Wavelength:
µm
(0.365–0.9)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.27624-0.009687465λ^{2}+0.009233038λ^{-2}+0.0003894085λ^{-4}-3.801873\text{×}10^{-05}λ^{-6}+2.069323\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.5274e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.517277
Vd: 69.563190
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
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets