Nándor Bokor

TL;DR: In this paper, a new technique is proposed for generating a tight dark focal spot surrounded by uniform light intensity in all directions, based on a single focusing lens illuminated from one side, hence the alignment sensitivities associated with 4π methods are eliminated.

TL;DR: With a focusing system satisfying the Herschel condition, sharp focal spots with almost-perfect spherical symmetry and extremely low sidelobes are achieved with 4pi focusing with radially polarized light.

TL;DR: The focal intensity distribution of strongly focused first order Laguerre-Gaussian doughnut beams is investigated experimentally for three different polarizations, and the superiority of one of the circular polarizations is demonstrated to achieve a sharp dark central spot.

TL;DR: It is shown that a focal spot that has an extremely sharp dark region at the center and an almost-perfect spherical symmetry can be achieved.

TL;DR: In this article, the dependence of fluorescence depletion on the relative polarizations of pump and erase beams was investigated for a sample of randomly oriented Rhodamine-6G molecules, and the significance of polarization effects was illustrated for two existing systems of fluorescent super-resolution microscopy: a circular polarization setup and an azimuth-linear polarization setup.