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In this paper, we introduce new designs of all-optical OR, AND, XOR, NOT, NOR, NAND and XNOR logic gates based on the interference effect. The designs are built using 2D square lattice Photonic Crystal (PhC) structure of dielectric rods embedded in air background. The lattice constant, a , and the rod radius, r , are designed to achieve maximum operating range of frequencies using the gap map. We...
We present a plasmonic absorber of Fabry-Perot-like resonator and demonstrate the tuning capability of its spectral response. The conventional resonator comprises two spaced layers of gold to act as a confinement for the light and resonant structure. The cavity thickness can be used efficiently as a tuning parameter for the absorber frequency response. The unloaded absorber shows high absorption greater...
This paper studies a dual-band antenna and a rectifying circuit that can be integrated together with the aim of harvesting enough power for the operation of an implantable glucose sensor. A capacitively-loaded printed inverted F-antenna (IFA) on a flexible thin Liquid Crystal Polymer Rogers substrate in addition to a schottky-diode based single stage rectifying circuit were designed and simulated...
A wireless power transfer system based on the concept of Near-Field Focusing is proposed. MUltiple Signal Classification (MUSIC) algorithm is used for localization and tracking, 2-D array of identical elements working at 2.4 GHz is used to focus the beam at the targets to be charged which are located in the near-field of the array. The proposed system ensures the delivery of a sufficient amount of...
In this paper, novel designs of nano antenna arrays suitable for refractive index sensing are introduced. The proposed single element design consists of a gold disk placed on top of a silica disk with the same diameter. The silica disk can be slightly radially-inward etched under the gold disk, which replicates the mushroom shape. The interaction between the analyte and the field concentration region...
The area of Wireless Sensor Networks (WSNs) have attracted many researchers lately. The applications of WSNs have been widely spread in different fields including battle and health monitoring fields. In addition, smart environment became one of the important applications of the WSNs. However, the current simulators are still limited to cover all of the applications of WSNs, especially the ones that...
This With the advances of hardware technology, WSNs have been utilized in many critical application. Some of these applications are battle field monitoring, health care monitoring, structure health monitoring, and many other applications. However, there are some other applications that require Three Dimension (3D) deployment such as smart home, smart classroom, and/or even smart city or smart University...
We present an experimental and theoretical analysis of the optical properties of gold nanorings of different sizes and cross-sections. We show that for light polarized parallel to the ring, the optical spectrum can depend sensitively on the angle of incidence. For normal incidence, the spectrum is characterized by two dipolar ring resonances. As the angle of incidence becomes more oblique, several...
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