RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF46A

Wavelength: µm
 (0.37–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{2.16701566λ^2}{λ^2-0.0123595524}+\frac{0.319812761λ^2}{λ^2-0.0560610282}+\frac{1.66004486λ^2}{λ^2-107.047718}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.53e-06 1.24e-08 -1.87e-11 8.39e-07 1.04e-09 0.275
nd: 1.90366
Vd: 31.32
glass_code: 904313.445
glass_status: standard
density: 4.449 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 6e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 7.15e-06 K-1
dPgF: 0.0042
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 3.0
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.

External links


Glass

External links