The promising properties of photonic crystal fibers (PCFs) have sparked the interest of a
number of research organizations. Due to the PCF's air holes, liquid or gas samples can be …

Fibre Bragg grating (FBG) pressure sensors show a great potential in replacing conventional
electrical pressure sensors due to their numerous advantages. However, increasing their …

In this paper, we demonstrate a high sensitivity refractive index (RI) sensor with D-shaped
structure covered with gold and graphene film. Specifically, the effect of structural …

A fiber-optic Fabry–Perot pressure sensor with embedded micro-electromechanical system
(MEMS) micro-cavity for ultra-high pressure detection is demonstrated. The embedded-type …

We demonstrate a fiber in-line Mach–Zehnder interferometer based on an inner air-cavity
with open micro-channel for high-pressure sensing applications. The inner air-cavity is …

Nanomechanical sensors made from suspended graphene are sensitive to pressure
changes. However, these devices typically function by obtaining an electrical signal based …

Low frequency under-water acoustic signal detections are challenging, especially for marine
applications. A Mach-Zehnder interferometric hydrophone is demonstrated using …

This paper presents a novel hydrostatic pressure sensor using high birefringence photonic
crystal fibers (PCFs), featuring an enhanced sensitivity with wide range of detection along …

Tuberculosis is one of the most contagious and lethal illnesses in the world, according to the
World Health Organization. Tuberculosis had the leading mortality rate as a result of a single …

Brain tumors, abnormalities, and malignancies are considered fatal. Early detection
techniques could save lives if they are utilized effectively for brain cancers. They should …