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## Optical constants of OHARA - PBL (Plumbate, low-index)

PBL1Y

Wavelength:
µm

(0.31 – 2.4)

### Complex refractive index (*n+ik)*

n
k
LogX
LogY
eV

### Derived optical constants

### Dispersion formula

$$n^2-1=\frac{1.24772961λ^2}{λ^2-0.00926606623}+\frac{0.101954909λ^2}{λ^2-0.0451754311}+\frac{0.350479619λ^2}{λ^2-45.0186705}$$### Conditions & Spec sheet

n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -1.01e-06 1.18e-08 -4.19e-11 6.98e-07 6.69e-10 0.226 nd: 1.548141 Vd: 45.733282 glass_code: 548457 density: 2.95 g/cm^{3}thermal_expansion: - temperature_range: -30 70 °C coefficient: 9.3e-06 K^{-1}- temperature_range: 20 300 °C coefficient: 1.06e-05 K^{-1}dPgF: -0.0019 climatic_resistance: 2.0 acid_resistance: 1.0 phosphate_resistance: 1.1

### 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