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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF68N

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.49455025λ^2}{λ^2-109.762523}+\frac{2.07574257λ^2}{λ^2-0.010404077}+\frac{0.361138143λ^2}{λ^2-0.041262142}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.92e-09 1.31e-08 -2.62e-11 7.34e-07 7.89e-10 0.237
nd: 1.883000
Vd: 39.218200
glass_code: 883392
density: 5.17 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 5.8e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 8.6e-06 K-1
dPgF: -0.006
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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