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Optical constants of OHARA - PBM (Plumbate, medium-index)
PBM35
Wavelength:
µm
(0.3 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.7934634-0.011916323λ^{2}+0.027252732λ^{-2}+0.0026477261λ^{-4}-0.00022721609λ^{-6}+2.0411942\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.239e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.698947
Vd: 30.121211
glass_code: 699301
glass_status: preferred
density: 4.1 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.2e-06 K-1
dPgF: 0.0063
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