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Optical constants of SCHOTT - BaK (Barium crown)
N-BAK1

Wavelength: µm
 (0.3 – 2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.12365662λ^2}{λ^2-0.00644742752}+\frac{0.309276848λ^2}{λ^2-0.0222284402}+\frac{0.881511957λ^2}{λ^2-107.297751}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.86e-07 1.29e-08 -1.87e-11 5.25e-07 5.46e-10 0.182
nd: 1.5725
Vd: 57.55
glass_code: 573576.319
glass_status: standard
density: 3.19 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.6e-06 K-1
dPgF: 0.0002
climatic_resistance: 2.0
stain_resistance: 1.0
acid_resistance: 3.3
alkali_resistance: 1.2
phosphate_resistance: 2.0

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

BAK1 optical glass

BAK1 is a very popular optical glass. Most glass makers produce this or very similar glass.

BAK1 or similar glasses produced by different makers

Maker Glass
Schott N-BAK1
Hikari E-BAK1
Ohara S-BAL11
CDGM H-BAK8

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