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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF41

Wavelength: µm
 (0.334 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.86348331λ^2}{λ^2-0.00910368219}+\frac{0.413307255λ^2}{λ^2-0.0339247268}+\frac{1.35784815λ^2}{λ^2-93.3580595}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.03e-06 1.04e-08 -1.3e-11 6.62e-07 7.82e-10 0.209
nd: 1.83501
Vd: 43.13
glass_code: 835431.485
glass_status: standard
density: 4.845 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.19e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.33e-06 K-1
dPgF: -0.0083
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 4.0
alkali_resistance: 1.0
phosphate_resistance: 1.0

Comments

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.

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