Optical antennas are devices that convert freely propagating optical radiation into localized
energy, and vice versa. They enable the control and manipulation of optical fields at the …

This review discusses the recent studies of magnetization dynamics and the role of angular
momentum in thin films of ferrimagnetic rare-earth–transition metal (RE–TM) alloys, eg …

Conventional optical components rely on gradual phase shifts accumulated during light
propagation to shape light beams. New degrees of freedom are attained by introducing …

Nanoantennas for visible and infrared radiation can strongly enhance the interaction of light
with nanoscale matter by their ability to efficiently link propagating and spatially localized …

We analyze the design of ultrathin quarter-wave plates based on plasmonic metasurfaces.
After exploring the general theoretical possibilities offered by thin surfaces to manipulate the …

Unlike radiowave antennas, so far optical nanoantennas cannot be fed by electrical
generators. Instead, they are driven by light or indirectly via excited discrete states in active …

Chiral surface plasmon polaritons (SPPs) can be generated by linearly polarized light
incident at the end of a nanowire, exciting a coherent superposition of three specific …

The response of optical metasurfaces is usually narrowband, and mechanisms to increase
their bandwidth often clash with causality and passivity constraints of materials. Here we are …

This paper presents a novel approach to reducing undesirable coupling in antenna arrays
using custom-designed resonators and inverse surrogate modeling. To illustrate the …

Using magneto-optical microscopy in combination with ellipsometry measurements, we
show that all-optical switching with polarized femtosecond laser pulses in ferrimagnetic …