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

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.32811418λ^2}{λ^2-0.0086851075}+\frac{0.126865199λ^2}{λ^2-0.0440786174}+\frac{1.04004826λ^2}{λ^2-120.899619}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.53e-06 1.58e-08 -4.13e-11 6.35e-07 4.85e-10 0.235
nd: 1.582670
Vd: 46.597786
glass_code: 583466
density: 2.91 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 8.2e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 1e-05 K-1
dPgF: 0.0005
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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