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Optical constants of OHARA - PBL (Plumbate, low-index)
PBL25Y
Wavelength:
µm
(0.31 – 2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.31960626λ^2}{λ^2-0.0101863415}+\frac{0.123752633λ^2}{λ^2-0.0483593508}+\frac{0.210055351λ^2}{λ^2-27.3272029}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 25.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.78e-07 1.35e-08 -3.9e-11 8.57e-07 7.83e-10 0.228
nd: 1.581439
Vd: 40.768047
glass_code: 581408
density: 3.23 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.8e-06 K-1
dPgF: -0.0016
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