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Optical constants of SCHOTT - SF (Dense flint)
N-SF56

Wavelength: µm
 (0.38–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.73562085λ^2}{λ^2-0.0129624742}+\frac{0.317487012λ^2}{λ^2-0.0612884288}+\frac{1.95398203λ^2}{λ^2-161.559441}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.13e-06 7.65e-09 -1.12e-11 9.9e-07 1.57e-09 0.287
nd: 1.7847
Vd: 26.1
glass_code: 785261.328
glass_status: special
density: 3.28 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.7e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1e-05 K-1
dPgF: 0.014
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 1.3
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