The number of Internet of Things (IoT) devices to be connected via the Internet is
overgrowing. The heterogeneity and complexity of the IoT in terms of dynamism and …

The development of metamaterial absorbers has become attractive for various fields of
application, such as sensing, detectors, wireless communication, antenna design, emitters …

Ultra-thin two-dimensional semiconducting crystals in their monolayer and few-layer forms
show promising aspects in nanoelectronic applications. However, the ultra-thin nature of two …

In this article, photonic crystal (PhC) based all-optical logic gates, namely AND, OR and EX-
OR have been explored and their characteristics are reported. Two-dimensional (2D) PhC …

Surveillance remains an important research area, and it has many applications. Smart
surveillance requires a high level of accuracy even when persons are uncooperative. Gait …

We experimentally demonstrate a free-space optical (FSO) communication link using an
optical “bottle” beam to help circumvent obstructions. At the transmitter, an optical “bottle” …

In this paper, an optical communication system constructed with cascaded fiber Bragg
gratings or fiber Bragg gratings (FBGs) of varying lengths capable of operating in the C-band …

Next Generation cellular networks are expected to offer better service quality, secure and
reliable service provisioning, and more cooperative operation even in unexpected stressful …

The temporal characteristics of the free space optical communication (FSOC) turbulence
fading channel are essential for analyzing the bit error rate (BER) performances and …

In the field of optics the tinier devices are the better; therefore, the diffraction limit of light
seems like an essential limitation in the way of that field. In return, new methods have …