## Optix.eXpert

Optix.eXpert is our new website that aims at connecting optical professionals with employers looking to outsource optics related work. Sign up and post a listing now to start offering a service.

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

PBL35Y

Wavelength:
µm

(0.320 – 2.400)

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

n
k
LogX
LogY
eV

### Derived optical constants

### Dispersion formula

$$n^2-1=\frac{1.31884698λ^2}{λ^2-0.0101474939}+\frac{0.125014653λ^2}{λ^2-0.0481636043}+\frac{0.215794324λ^2}{λ^2-28.5517448}$$### Conditions & Spec sheet

n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -1.48e-06 1.41e-08 -1.47e-11 8.54e-07 6.15e-10 0.229 nd: 1.581591 Vd: 40.855991 density: 3.27 g/cm^{3}thermal_expansion: - temperature_range: -30 70 °C coefficient: 9.1e-06 K^{-1}dPgF: -0.0013 climatic_resistance: 2.0 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