Propagation optical quarks after an uniaxial crystal: the experiment

Yu. A. Egorov; V. L. Konovalenko; A. O. Zinovev; P. M. Anischenko; M. V. Glumova

doi:10.1117/12.2049696

17 December 2013 Propagation optical quarks after an uniaxial crystal: the experiment

Yu. A. Egorov, V. L. Konovalenko, A. O. Zinovev, P. M. Anischenko, M. V. Glumova

Proceedings Volume 9066, Eleventh International Conference on Correlation Optics; 90660B (2013) https://doi.org/10.1117/12.2049696
Event: Eleventh International Conference on Correlation Optics, 2013, Chernivsti, Ukraine

Abstract

There is a lots of different papers reporting about the propagation of the different types of an optical beams in a uniaxial crystals are known by that time. This beams are: Lager-Gaussian and Bessel- Gaussian beams. It is common for all this types of beams, that if propagation axis and crystal axis coincides, and accident beam had a circular polarization, are can get type spiral type degenerated umbilici, which corresponds to the charge 2 optical vortex in the orthogonal polarized beam component, generated by crystal [1] (Fig 1). This generation accurse due to total angular momentum conservation law symmetry axis of the crystal. One to the changing of the spin momentum which is associated with the beam polarization, this leads to the orbital momentum changes that associated with topological charge of formed orthogonal circular component. Double charged optical vortex could be easily perturbed by tilting beam axis with respect to the crystal axis. If the tilt angles are small (<0.1°) central umbilici splits on two lemons and the surrounding ring umbilici splits on two pairs of monster-star. The further increasing of the tilt angle leads to the topological charge of circular components becomes, equal, and additional orbital moment correspond to the beam mass center displacement.

Citation Download Citation

Yu. A. Egorov, V. L. Konovalenko, A. O. Zinovev, P. M. Anischenko, and M. V. Glumova "Propagation optical quarks after an uniaxial crystal: the experiment", Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 90660B (17 December 2013); https://doi.org/10.1117/12.2049696

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