Abstract
Conical refraction (CR) is observed for the light propagating along the optical axis of a biaxial crystal. In this case a narrow beam evolves as a hollow double-walled cylinder of light behind the exit facet of a crystal. Despite of almost two-centuries-long research, CR was slow with practical applications, mainly due to the difficulties associated with cutting of the biaxial crystals with the necessary precision. However, a number of recent papers report on the emerging applications of CR for the realisation of ultra-efficient CR lasers, lasers with CR output, optical trapping with CR beams, utilisation of CR for quantum-computing, cryptography and super-resolution microscopy (see e.g. [1] and references therein). However, one of the most novel and intriguing phenomena within the CR are associated with utilization of vortex input beams. These are capable to completely change the familiar CR patterns [2] and trigger many new applications. In this sense, studies of CR with Laguerre-Gaussian beams LGℓ0, which are the simplest vortices, may be very fruitful (here, ℓ is the index determining vortex charge): These already have demonstrated specific new properties of CR, such as formation of a multi-ring image in the Lloyd plane [2].
© 2019 IEEE
PDF ArticleMore Like This
Valentin Yu. Mylnikov, Edik U. Rafailov, and Grigorii S. Sokolovskii
ej_3_1 European Quantum Electronics Conference (EQEC) 2021
M.E.J. Friese, J.A. Andersen, and H. Rubinsztein-Dunlop
QThI31 Quantum Electronics and Laser Science Conference (CLEO:FS) 2001
Amin Abdolvand, Keith G. Wilcox, Todor K. Kalkandjiev, Yuri Loiko, Jordi Mompart, and Edik U. Rafailov
CTuG3 Conference on Lasers and Electro-Optics (CLEO:S&I) 2010