RefractiveIndex.INFO

Refractive index database


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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF4LA

Wavelength: µm
 (0.360 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=3.52200128-0.0121473151λ^{2}+0.0435909987λ^{-2}+0.000593247086λ^{-4}+8.40620002\text{×}10^{-05}λ^{-6}+2.27233268\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 2.77e-07 1.29e-08 2.83e-11 1.08e-06 1.34e-09 0.201
nd: 1.910826
Vd: 35.255728
glass_code: 911353
glass_status: standard
density: 5.07 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.1e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.5e-06 K-1
dPgF: -0.003
climatic_resistance: 1.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

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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