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

Wavelength: µm
 (0.334 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

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

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: 3.03e-06 1.04e-08 -1.3e-11 6.62e-07 7.82e-10 0.209
n_d: 1.83501
V_d: 43.13
glass_code: 835431.485
glass_status: standard
density: 4.845 g/cm3
coefficient_of_thermal_expansion_1: 6.19e-06 K-1
coefficient_of_thermal_expansion_2: 7.33e-06 K-1
ΔP_gF: -0.0083
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 4.0
alkali_resistance: 1.0
phosphate_resistance: 1.0

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