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Optical constants of CDGM - PK (Phosphate crown)
D-PK3

Wavelength: µm
 (0.300 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.631688714λ^2}{λ^2-0.0127792227}+\frac{0.666896432λ^2}{λ^2-0.00313927857}+\frac{0.874644819λ^2}{λ^2-90.174067}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.49e-06 1.52e-08 -7.04e-11 4.13e-07 3.57e-10 0.131
nd: 1.525000
Vd: 70.370578
glass_code: 525704
density: 2.65 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 8.1e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 9.8e-06 K-1
dPgF: 0.0048
climatic_resistance: 2.0

Comments

anneal rate:4℃/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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