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- Centre National de la Recherche ScientifiqueFR266 papers
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12 papers · 2 filters
Super-resolution capacity of variance-based stochastic fluorescence microscopy
Simon Labouesse, Jérôme Idier, Marc Allain +3
Improving the resolution of fluorescence microscopy beyond the diffraction limit can be achievedby acquiring and processing multiple images of the sample under different illuminati…
Broadband terahertz near-field excitation and detection of silicon photonic crystal modes
Kseniia Lezhennikova, Sahand Mahmoodian, Boris T. Kuhlmey +4
Chip-based terahertz (THz) devices are emerging as versatile tools for manipulating mm-wave frequencies in the context of integrated high-speed communication technologies for poten…
Ray and caustic structure of Ince-Gauss beams
Rodrigo Gutiérrez-Cuevas, Mark R. Dennis, Miguel A. Alonso
The Ince-Gauss beams, separable in elliptic coordinates, are studied through a ray-optical approach. Their ray structure can be represented over a ray-Poincaré sphere by generalize…
Extending the capabilities of vectorial ptychography to circular-polarizing materials such as cholesteric liquid crystals
Patrick Ferrand, Michel Mitov
The problem of imaging materials with circular polarization properties is discussed within the framework of vectorial ptychography. We demonstrate, both theoretically and numerical…
Periodic skyrmionic textures via conformal cartographic projections
David Marco, Isael Herrera, Sophie Brasselet +1
We find periodic skyrmionic textures via conformal cartographic projections that map either an entire spherical parameter space or a hemisphere onto every regular polygon that prov…
Fluorescence enhancement in topologically optimized gallium phosphide all-dielectric nanoantennas
Cynthia Vidal, Benjamin Tilmann, Sunny Tiwari +4
Nanoantennas capable of large fluorescence enhancement with minimal absorption are crucial for future optical technologies from single-photon sources to biosensing. Efficient diele…