Florin Abelès (October 20, 1922 – April 12, 2005)[1] was a French physicist, specialized in optics.

In his 1949 doctoral thesis, Abelès developed a transfer-matrix formalism to compute the transmission and reflection of light by thin dielectric layers. When Lyman G. Parratt performed the first x-ray reflectometry experiment in 1954, he developed an equivalent recursion method. Nowadays, Abelès matrices or Parratt recursion are exchangeably used in investigations of multilayers by x-ray reflectometry, neutron reflectometry, or ellipsometry.

In 1969, Abelès founded the journal Optics Communications. He served as editor-in-chief until 1993.[2]

Book catalogue entry of the Bibliothèque nationale de France
"Obituary : Florin Abelès". Optics & Photonics News. September 2005: 41. Retrieved 3 April 2017.

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