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Optical constants of HIKARI - BaF (Barium flint)
J-BAF12

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.62810335-0.00995087731λ^{2}-0.000144740792λ^{4}+0.0206473464λ^{-2}+0.000162531777λ^{-4}+7.85240289\text{×}10^{-05}λ^{-6}-7.45350927\text{×}10^{-06}λ^{-8}+4.83617341\text{×}10^{-07}λ^{-10}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.86e-06 1.3085e-08 -2.2674e-12 7.946e-07 9.6385e-10 0.17031
nd: 1.639300
Vd: 44.834133
density: 3.23 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.7e-06 K-1
dPgF: 0.0005
phosphate_resistance: 2.0

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

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