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Optical constants of CDGM - BAK (Barium crown)
H-BAK2

Wavelength: µm
 (0.290 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.33527993-0.0078806451λ^{2}+0.0135145071λ^{-2}-0.000142281768λ^{-4}+4.61865579\text{×}10^{-05}λ^{-6}-2.07689693\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.36e-06 2.63e-08 -8.17e-11 4.48e-07 -8.32e-10 0.226
nd: 1.539964
Vd: 59.730319
glass_code: 540597
density: 2.84 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.4e-06 K-1
dPgF: 0.0002

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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