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Optical constants of CDGM - ZK (Dense crown)
H-ZK20

Wavelength: µm
 (0.290 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.812249368λ^2}{λ^2-0.0181753969}+\frac{0.755251214λ^2}{λ^2-0.00247827771}+\frac{1.15073913λ^2}{λ^2-144.030731}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.38e-07 1.59e-08 -2.45e-11 6.4e-07 4.47e-10 0.192
nd: 1.617200
Vd: 53.913743
glass_code: 617539
density: 3.66 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 7.8e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 9e-06 K-1
dPgF: -0.0009

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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