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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF85LN

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.92017081λ^2}{λ^2-0.00961912018}+\frac{0.386379034λ^2}{λ^2-0.0389567822}+\frac{1.291166λ^2}{λ^2-97.9773368}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.18e-06 1.74e-08 -3.81e-11 8.61e-07 5.26e-10 0.215
nd: 1.845580
Vd: 40.094322
glass_code: 846401
density: 4.96 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 6.3e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 8.2e-06 K-1
dPgF: -0.006
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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