This paper reviews recent advances in sensor technologies for non-destructive testing
(NDT) and structural health monitoring (SHM) of civil structures. The article is motivated by …

A new structure of hexahedron core with the heptagonal shape of cladding regions based
on photonic crystal fiber (Hx-PCF) is presented of this research work. The finite element …

With the booming of nanotechnology, surface plasmon resonance (SPR) technology has
become one of the most active research hotspots in optical sensing. In this work, a square …

In this paper, we propose a dual-band tunable absorber with a graphene-dielectric-metal
structure as a sensor in the terahertz (THz) region. The finite element method (FEM) based …

A novel polymer-based ring-core circular photonic crystal fiber (C-PCF) is proposed and
investigated. The solid core C-PCF structure is composed of Topas as background material …

Photonic crystal fiber (PCF) sensors exhibit significant potential for applications in diverse
fields, including environmental observation, industrial settings, chemistry, biomedicine, and …

An unstable bilirubin level in the human blood causes many dangerous health problems,
such as jaundice, coronary artery disease, ulcerative colitis, and brain lesions. Therefore …

An optical sensor that recognizes various blood constituent types is demonstrated in this
work and is based on a pentagonal-shaped cladding photonic crystal fiber (PCF) model with …

Numerous techniques and technologies have been proposed for the detection and
identification of hazardous chemicals that can harm the lungs and respiratory system as well …

In this research work, a novel design of octagonal cladding with two elliptical cores in
photonic crystal fiber (O-PCF) is studied for application in the terahertz (THz) frequency …