Conical refraction with low-coherence light sources

V. Y.U. Mylnikov, S. N. Losev, V. V. Dudelev, K. A. Fedorova, E. U. Rafailov, G. S. Sokolovskii*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We report on conical refraction (CR) with low-coherence light sources, such as light-emitting diodes and decoherentized HeNe laser radiation, and demonstrate different CR patterns. In our experiments, a variation of the pinhole sizes from 25 to 100 µm and the distances to pinhole from 50 to 5 cm reduced spatial coherence of radiation that resulted in the disappearance of the dark Poggendorff’s ring in the Lloyd’s plane. This is attributed to the interference nature of the Lloyd’s distribution and found to be in excellent agreement with the paraxial dual-cone model of conical refraction.

Original languageEnglish
Pages (from-to)25428-25435
Number of pages8
JournalOptics Express
Issue number18
Publication statusPublished - 22 Aug 2019

Bibliographical note

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement


Dive into the research topics of 'Conical refraction with low-coherence light sources'. Together they form a unique fingerprint.

Cite this