Metasurfaces are 2D artificial materials consisting of arrays of metamolecules, which are
exquisitely designed to manipulate light in terms of amplitude, phase, and polarization state …

The structure of our material world is characterized by a large hierarchy of length scales that
determines material properties and functions. Increasing spatial resolution in optical imaging …

Engineered nanomaterials (ENMs) are now becoming a significant fraction of the material
flows in the global economy. We are already reaping the benefits of improved energy …

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 …

Optical antennas are an emerging concept in physical optics. Similar to radiowave and
microwave antennas, their purpose is to convert the energy of free propagating radiation to …

The goal of this paper is to introduce a local form of Kirchhoff law to model light emission by
nonequilibrium bodies. While absorption by a finite-size body is usually described using the …

We propose a novel cross resonant optical antenna consisting of two perpendicular
nanosized gold dipole antennas with a common feed gap. We demonstrate that the cross …

This paper reviews the state of rapidly emerging terahertz hot-electron nanobolometers
(nano-HEB), which are currently among of the most sensitive radiation power detectors at …

The radiation efficiency of nano-antennas is a key parameter in the emerging field of IR and
optical energy harvesting. This parameter is the first factor in the total efficiency product by …

This paper reviews recent work on device applications of optical antennas. Localized
surface plasmon resonances of gold nanorod antennas resting on a silica glass substrate …