Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona

Super-pupil beam engineering for enhanced confinement of azimuthally polarized depletion beams

Fluorescence depletion microscopy techniques require optical fields with a well-defined and spatially confined central intensity minimum to achieve sub-diffraction lateral resolution. Here, we present the design and experimental implementation of an azimuthally polarized, doughnu...

Layered Nickel–HHTP Networks for Efficient Chemiresistive Sensing of CH 4 and CO 2

ABSTRACT The synthesis and single‐crystal structural elucidation of Ni‐HHTP are reported for the first time, achieved from crystals of sufficient size for electron diffraction analysis. These studies reveal that the crystal structure of Ni‐HHTP alternates between radical‐rich and...