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Optical constants of SCHOTT - LaF (Lanthanum flint)
N-LAF3

Wavelength: µm
 (0.35–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.73155854λ^2}{λ^2-0.00953833914}+\frac{0.150874455λ^2}{λ^2-0.0407887211}+\frac{1.06586596λ^2}{λ^2-98.0758545}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.35e-06 1.07e-08 -9.38e-12 5.72e-07 6.01e-10 0.22
nd: 1.717
Vd: 47.96
glass_code: 717480.414
glass_status: special
density: 4.14 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.7e-06 K-1
dPgF: -0.0028
climatic_resistance: 2.0
stain_resistance: 3.0
acid_resistance: 52.3
alkali_resistance: 1.2
phosphate_resistance: 3.3

Comments

inquiry glass

References

SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

SCHOTT AG

SCHOTT AG is a German glass manufacturer. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.

External links


Glass

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