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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
LASF35

Wavelength: µm
 (0.37 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{2.45505861λ^2}{λ^2-0.0135670404}+\frac{0.453006077λ^2}{λ^2-0.054580302}+\frac{2.3851308λ^2}{λ^2-167.904715}$$

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 1.43e-07 8.71e-09 -2.71e-11 1.02e-06 1.5e-09 0.263
n_d: 2.02204
V_d: 29.06
glass_status: standard
density: 5.41 g/cm3
coefficient_of_thermal_expansion_1: 7.4e-06 K-1
coefficient_of_thermal_expansion_2: 8.5e-06 K-1
ΔP_gF: 0.0033
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.3
alkali_resistance: 1.0
phosphate_resistance: 1.3

References

1) SCHOTT optical glass data sheets 2015-07-22
2) SCHOTT Zemax catalog 2015-07-22

More info - wiki

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