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Optical constants of CDGM - ZPK (Dense phosphate crown)
D-ZPK1A

Wavelength: µm
 (0.300–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.723324526λ^2}{λ^2-0.00288945758}+\frac{0.863552452λ^2}{λ^2-0.0142439384}+\frac{0.985077169λ^2}{λ^2-116.596916}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.27e-05 7.36e-09 -1.75e-13 4.58e-07 2.54e-10 0.183
nd: 1.620870
Vd: 63.828532
glass_code: 621638
density: 3.69 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.05e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.28e-05 K-1
dPgF: 0.0063

Comments

anneal rate:4°C/h

References

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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