Conical refraction with low-coherent light sources

G.S. Sokolovskii, V.Yu Mylnikov, S.N. Losev, K.A. Fedorova, E.U. Rafailov

Research output: Chapter in Book/Published conference outputConference publication


We report on conical refraction (CR) experiments with low-coherent light sources such as light-emitting diodes (LEDs) that demonstrated different CR patterns. The change of a pinhole size from 25 to 100 μm reduced the spatial coherence of the LED radiation and resulted in the disappearance of the dark Poggendorf ring in the Lloyd's plane. This is attributed to the interference nature of the Lloyd's distribution and is found to be in excellent agreement with the paraxial dual-cone model of CR.

Original languageEnglish
Title of host publicationProceedings : 2016 International Conference Laser Optics
Number of pages1
ISBN (Print)978-1-4673-9735-3
Publication statusPublished - 23 Aug 2016
Event2016 International Conference Laser Optics - St. Petersburg, Russian Federation
Duration: 27 Jun 20161 Jul 2016

Publication series

Name2016 International Conference Laser Optics (Lo)


Conference2016 International Conference Laser Optics
Abbreviated titleLO 2016
Country/TerritoryRussian Federation
CitySt. Petersburg

Bibliographical note



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