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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF85L

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.516695305λ^2}{λ^2-0.0340497474}+\frac{1.81900011λ^2}{λ^2-0.00895670808}+\frac{1.42320717λ^2}{λ^2-110.045928}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.58e-06 1.63e-08 -3.37e-11 8.32e-07 7.24e-10 0.214
nd: 1.853700
Vd: 40.579411
glass_code: 854406
density: 5.28 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 6.3e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 7.7e-06 K-1
dPgF: -0.0081
climatic_resistance: 1.0

Comments

anneal rate:4℃/h

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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