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Optical constants of CDGM - BAK (Barium crown)
H-BAK4

Wavelength: µm
 (0.290 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.37934396-0.0111573292λ^{2}+0.010770657λ^{-2}+0.000537494005λ^{-4}-4.85885263\text{×}10^{-05}λ^{-6}+2.43110267\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 9.33e-07 2.01e-08 -2.04e-11 3.94e-07 2.14e-10 0.158
n_d: 1.552479
V_d: 63.372062
glass_code: 552634
density: 2.9 g/cm3
coefficient_of_thermal_expansion_1: 6.1e-06 K-1
coefficient_of_thermal_expansion_2: 7.6e-06 K-1
ΔP_gF: -0.0022
climatic_resistance: 2.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

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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