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Optical constants of OHARA - PBM (Plumbate, medium-index)
PBM2Y
Wavelength:
µm
(0.32 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.39446503λ^2}{λ^2-0.0110571872}+\frac{0.159230985λ^2}{λ^2-0.0507194882}+\frac{0.245470216λ^2}{λ^2-31.4440142}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.2e-06 1.69e-08 -3.38e-11 9.77e-07 7.43e-10 0.243
nd: 1.620041
Vd: 36.269263
glass_code: 620363
density: 3.61 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.7e-06 K-1
dPgF: -0.0003
climatic_resistance: 1.0
acid_resistance: 1.0
phosphate_resistance: 2.0
Comments
Improved XMT at 365
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets