Traditional objective lenses in modern microscopy, based on the refraction of light, are
restricted by the Rayleigh diffraction limit. The existing methods to overcome this limit can be …

Overcoming the classical diffraction limit in optical microscopy is known to be achievable by
a variety of far-field and near-field microscopy techniques. More recently, so-called micro …

The photonic nanojet (PNJ) is a narrow high-energy beam that was originally found on the
back side of all-dielectric spherical structures. It is a unique type of energy concentration …

Nanostructured surfaces and devices offer astounding possibilities for biomedical research,
including cellular and molecular biology, diagnostics, and therapeutics. However, the wide …

We demonstrated the importance of the refractive index of the background medium
containing the microsphere in microsphere-assisted super-resolution microscopy. We …

When light propagates through the edge or middle part of a microparticle's incoming
interface, there is a basic rule that light converges and diverges rapidly or slowly at the …

Recently, a type of curved light beams, photonic hooks (PHs), was theoretically predicted
and experimentally observed. The production of photonic hook (PH) is due to the breaking of …

We employ a genetic algorithm coupled with Mie theory to optimize the magnetic field
intensity profile of photonic nanojets (PNJs) generated by multilayer microcylinders at visible …

A novel design of decorating microsphere surface with concentric rings to modulate the
photonic nanojet (PNJ) is investigated. By introducing the concentric ring structures into the …

We demonstrate the possibility of generating a photonic nanojet with a helix shape (photonic
nanohelix) at the diffraction of a Gaussian beam on a binary spiral axicon. We investigate …