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Optical constants of CDGM - BAF (Barium flint)
H-BAF4

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.45376994-0.00813614699λ^{2}+0.0179634979λ^{-2}+0.000111641611λ^{-4}+3.86804485\text{×}10^{-05}λ^{-6}-3.17507239\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.86e-06 1.78e-08 -4.5e-11 8.39e-07 4.6e-10 0.153
nd: 1.582672
Vd: 46.606408
glass_code: 583466
density: 2.91 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1e-05 K-1
dPgF: 0.0007
climatic_resistance: 1.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

Data

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

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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