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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF2A

Wavelength: µm
 (0.310–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.76389273λ^2}{λ^2-0.00842148915}+\frac{0.407585264λ^2}{λ^2-0.0304194282}+\frac{1.27020239λ^2}{λ^2-89.5802552}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.27e-06 1.49e-08 -3.26e-11 6.27e-07 5.37e-10 0.2
nd: 1.802790
Vd: 46.761307
glass_code: 803468
density: 4.65 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.8e-06 K-1
dPgF: -0.0089

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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