From Blue to Green

From Blue to Green

From Blue to Green

A blue/UV laser pointer was coupled into the handle of a cup, which guides the light and feeds it into a fluorescing liquid that lights up in green colors. The surrounding lab environment was darkened completely to highlight the effect. The image was taken in the lab at Leibniz-IPHT Jena. [Winning entry, 2018 After Image photo contest.]

—Tobias Tieß, Leibniz-IPHT, Germany

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