Optical constants of CARGILLE
BK7 matching liquid
Wavelength:
µm
(0.35–1.55)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n=1.502639+4.7089420\text{×}10^{-5}λ^{-2}+6.3670450\text{×}10^{-5}λ^{-4}$$Conditions
temperature: 298
Comments
25 °C
References
BK-7 Matching Liquid Data Sheet 27-March-2023 (obtained from https://www.cargille.com)
Data
Additional information
Properties of BK7 matching liquid
density:
-
temperature: 298
value: 1322
thermal_expansion:
-
temperature: 298
value: 0.0007
freezing_point:
-
value: 264
About Index-matching materials
An index-matching material is usually used to create an optical contact with minimum reflection between optical components.
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