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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF85A-25

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.37428361λ^2}{λ^2-105.610997}+\frac{0.412199165λ^2}{λ^2-0.0373787374}+\frac{1.91320505λ^2}{λ^2-0.00975370563}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 5.25e-06 2.15e-08 -1.05e-10 8.21e-07 -6.33e-10 0.216
nd: 1.851100
Vd: 40.055609
glass_code: 851401
density: 5.22 g/cm3
thermal_expansion:
  - temperature_range: 20 300 ℃
    coefficient: 7.8e-06 K-1
dPgF: -0.0075
climatic_resistance: 1.0

Comments

anneal rate:25℃/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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