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Optical constants of CDGM - BAK (Barium crown)
H-BAK5

Wavelength: µm
 (0.300 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.858085903λ^2}{λ^2-101.018871}+\frac{0.38007029λ^2}{λ^2-0.0203677495}+\frac{1.01787547λ^2}{λ^2-0.0056451589}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.61e-07 2e-08 -4.99e-11 5.12e-07 4.45e-10 0.21
nd: 1.560690
Vd: 58.344731
glass_code: 561583
density: 3.01 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 7.6e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 8.8e-06 K-1
dPgF: -0.0007
climatic_resistance: 1.0

References

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets

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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