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Optical constants of SUMITA - BaF (Barium flint)
K-BaF8

Wavelength: µm
 (0.340 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.5830562-0.01131971λ^{2}+0.018817464λ^{-2}+0.00027063309λ^{-4}+2.1527561\text{×}10^{-05}λ^{-6}+7.7761941\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 7.3e-07 1.78e-08 -2.34e-10 5.81e-07 1.81e-11 0.234
n_d: 1.62374
V_d: 47.1
glass_code: 624471
density: 3.02 g/cm3
coefficient_of_thermal_expansion_1: 6.7e-06 K-1
coefficient_of_thermal_expansion_2: 9.8e-06 K-1
ΔP_gF: 0.0001
climatic_resistance: 1.0
acid_resistance: 2.0

References

SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book

Data

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

INFO

SUMITA Optical Glass, Inc.

SUMITA Optical Glass, Inc. is a Japanese glass manufacturer

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