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Optical constants of SCHOTT - FK (Fluor crown)
FK3

Wavelength: µm
 (0.3–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.973346627λ^2}{λ^2-0.00640795469}+\frac{0.146642231λ^2}{λ^2-0.020565293}+\frac{0.679304225λ^2}{λ^2-80.4965389}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.9e-06 1.23e-08 -1.19e-10 3.45e-07 7.72e-10 0.18
nd: 1.4645
Vd: 65.77
glass_code: 464658.227
glass_status: special
density: 2.27 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.4e-06 K-1
dPgF: -0.0003
climatic_resistance: 2.0
stain_resistance: 3.0
acid_resistance: 52.4
alkali_resistance: 2.0
phosphate_resistance: 1.0

Comments

inquiry glass

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