The ability to engineer and shape the phase profile of optical beams is in the heart of any
optical element. Be it a simple lens or a sophisticated holographic element, the functionality …

The goal of antenna design at optical frequencies is to deliver optical electromagnetic
energy to loads in the form of, eg, atoms, molecules or nanostructures, or to enhance the …

We demonstrate wide-angle, broadband, and efficient reflection holography by utilizing
coupled dipole-patch nanoantenna cells to impose an arbitrary phase profile on the …

We report the fabrication of a colloidal quantum dot based photodetector designed for the 3–
5 μm mid infrared wavelength range incorporated with optical nano-antenna arrays to …

Understanding how to engineer nanomaterials for targeted solar-cell applications is the key
to improving their efficiency and could lead to breakthroughs in their design. Proposed …

We propose and analyze theoretically an approach for realizing a tunable optical phased-
array antenna utilizing the properties of VO_2 for electronic beam steering applications in …

We introduce an ultrasensitive detection technique for refractive index (RI) sensing based on
an array of nanometer scale slot-antennas milled in a thin gold layer using a single …

We study theoretically various design considerations for efficient generation of second
harmonic using a nonlinear substrate patterned with nano-antennas. The analysis is …

A laser-driven particle accelerator based on plasmonic nanoantennas is proposed and
analyzed. The concept utilizes the enhancement and localization of the electric field by …

A periodic array of dual-Vivaldi antennas integrated with metal-insulator-metal (MIM)
plasmonic waveguides was designed and investigated for its infrared light absorbance …