| Birth Date: | 20 October 1922 |
| Birth Place: | Galați, Romania |
| Death Place: | Paris, France |
| Nationality: | French |
| Fields: | Physics |
| Education: | Ecole Supérieure d'Optique |
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| Awards: | Prix Louis Ancel, CEK Mees Medal from the Optical Society of America |
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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]