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Optical constants of SCHOTT - FK (Fluor crown)
N-FK51

Wavelength: µm
 (0.29–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.971247817λ^2}{λ^2-0.00472301995}+\frac{0.216901417λ^2}{λ^2-0.0153575612}+\frac{0.904651666λ^2}{λ^2-168.68133}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.83e-05 -7.89e-09 -1.63e-12 3.74e-07 3.46e-10 0.15
nd: 1.48656
Vd: 84.47
glass_code: 487845.366
glass_status: preferred
density: 3.66 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.33e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.549e-05 K-1
dPgF: 0.0342
climatic_resistance: 2.0
stain_resistance: 0.0
acid_resistance: 52.3
alkali_resistance: 2.2
phosphate_resistance: 4.3

Comments

was replaced by N-FK51A

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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