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

Wavelength: µm
 (0.280 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.618389223λ^2}{λ^2-0.00174653825}+\frac{0.718400306λ^2}{λ^2-0.0158112967}+\frac{1.07451466λ^2}{λ^2-126.584788}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.36e-06 2.63e-08 -8.17e-11 4.48e-07 -8.32e-10 0.226
nd: 1.539960
Vd: 59.724182
glass_code: 540597
density: 2.84 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 8e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 9.4e-06 K-1
dPgF: 0.0004

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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