Abstract
A new universal law of photoluminescence is established, according to which the ratio of the luminescence spectrum when excited at a given wavelength of light to the excitation spectrum of luminescence when observed at the same wavelength is a universal function determined by the emission spectrum of a blackbody. This relationship is based on the principle of detailed equilibrium for photoluminescence, which is ultimately a generalization of Kirchhoff’s fundamental law in relation to any material bodies, including phosphors.
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Funding
This work was performed as part of State Task no. 0089-2019-0003. It was supported by the Government of the Russian Federation, contract no. 074-02-2018-286.
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Translated by P. Vlasov
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Razumov, V.F. A New Universal Law of Photoluminescence. Bull. Russ. Acad. Sci. Phys. 84, 542–546 (2020). https://doi.org/10.3103/S1062873820050251
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DOI: https://doi.org/10.3103/S1062873820050251