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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
P-LASF50

Wavelength: µm
 (0.334–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.84910553λ^2}{λ^2-0.00999234757}+\frac{0.329828674λ^2}{λ^2-0.0387437988}+\frac{1.30400901λ^2}{λ^2-95.8967681}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.04e-06 1.2e-08 -2.19e-11 8.2e-07 9.08e-10 0.209
nd: 1.8086
Vd: 40.46
glass_code: 809405.454
glass_status: standard
density: 4.541 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.32e-06 K-1
dPgF: -0.0078

Comments

suitable for precision molding

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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