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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF45HT

Wavelength: µm
 (0.365–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.87140198λ^2}{λ^2-0.011217192}+\frac{0.267777879λ^2}{λ^2-0.0505134972}+\frac{1.73030008λ^2}{λ^2-147.106505}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 2.78e-06 8.73e-09 -2.65e-11 8.24e-07 1.15e-09 0.255
nd: 1.80107
Vd: 34.97
glass_code: 801350.363
glass_status: standard
density: 3.626 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.36e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.56e-06 K-1
dPgF: 0.0009
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 3.2
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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