293 citations · 294 across the 2 of their papers we have counts for
9 papers
Cloaked near-field probe for non-invasive near-field optical microscopy
Felipe Bernal Arango, Filippo Alpeggiani, Donato Conteduca +7
Near-field scanning optical microscopy is a powerful technique for imaging below the diffraction limit, which has been extensively used in bio-medical imaging and nanophotonics. Ho…
Direct Observation of Topological Edge States in Silicon Photonic Crystals: Spin, Dispersion, and Chiral Routing
Nikhil Parappurath, Filippo Alpeggiani, L. Kuipers +1
Topological protection in photonics offers new prospects for guiding and manipulating classical and quantum information. The mechanism of spin-orbit coupling promises the emergence…
Topological Edge States in Bichromatic Photonic Crystals
F. Alpeggiani, L. Kuipers
Bichromatic photonic crystal structures are based on the coexistence of two different periodicities in the dielectric constant profile. They are realized starting from a photonic c…
Spatial bunching of same-charge polarization singularities in two-dimensional random vector waves
L. De Angelis, F. Alpeggiani, L. Kuipers
Topological singularities are ubiquitous in many areas of physics. Polarization singularities are locations at which an aspect of the polarization ellipse of light becomes undeterm…
Persistence and Lifelong Fidelity of Phase Singularities in Optical Random Waves
L. De Angelis, F. Alpeggiani, A. Di Falco +1
Phase singularities are locations where light is twisted like a corkscrew, with positive or negative topological charge depending on the twisting direction. Among the multitude of…
Spatial Distribution of Phase Singularities in Optical Random Vector Waves
L. De Angelis, F. Alpeggiani, A. Di Falco +1
Phase singularities are dislocations widely studied in optical fields as well as in other areas of physics. With experiment and theory we show that the vectorial nature of light af…