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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF51

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.16163938-0.0127262423λ^{2}+0.0325482205λ^{-2}+0.000373836955λ^{-4}+6.46085816\text{×}10^{-05}λ^{-6}+7.28177708\text{×}10^{-08}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.54e-06 1.58e-08 -6.65e-11 6.98e-07 1.18e-09 0.253
n_d: 1.804505
V_d: 39.639509
glass_code: 805396
density: 4.41 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 6.8e-06 K-1
ΔP_gF: -0.0052
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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