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Optical constants of SCHOTT - PK (Phosphate crown)
N-PK51

Wavelength: µm
 (0.3–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.15610775λ^2}{λ^2-0.00585597402}+\frac{0.153229344λ^2}{λ^2-0.0194072416}+\frac{0.785618966λ^2}{λ^2-140.537046}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.98e-05 -6.06e-09 1.6e-11 4.16e-07 5.01e-10 0.134
nd: 1.52855
Vd: 76.98
glass_code: 529770.386
glass_status: standard
density: 3.855 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.235e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.412e-05 K-1
dPgF: 0.0258
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 52.3
alkali_resistance: 3.3
phosphate_resistance: 4.3

Comments

suitable for precision molding. step 0.5 available

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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