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Cel badań. Zmiany legislacyjne, które dokonały się w systemie ratownictwa wodnego w Polsce po 2011 r. spowodowały powstanie rynku usług w tej dziedzinie. Celem prezentowanych rozważań jest próba odpowiedzi na podstawowe pytania: czy wprowadzone zmiany związane z zabezpieczaniem polskich akwenów wpłynęły na poziom bezpieczeństwa osób wypoczywających nad wodą, czy nowe podmioty zajmujące się ratownictwem...
We investigate the microscopic system in which the Gaussian beam with embedded optical vortex is used. The optical vortex is introduced by vortex lens. The vortex lens shift induces a precise nanometer shift of the embedded vortices inside the focused spot. The analytical formula for the complex amplitude of the focused spot with off-axis vortex was calculated, to our knowledge, for the first time...
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