As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

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 …

Metasurfaces are 2D artificial materials consisting of arrays of metamolecules, which are
exquisitely designed to manipulate light in terms of amplitude, phase, and polarization state …

Optical fiber sensors present several advantages in relation to other types of sensors. These
advantages are essentially related to the optical fiber properties, ie, small, lightweight …

Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

October 2015 and October 2019 and is written in continuation of previous reviews. 1, 2 In
exceptional cases, older references were cited. Data were electronically searched in …

Environmental monitoring has become essential in order to deal with environmental
resources efficiently and safely in the realm of green technology. Environmental monitoring …

In recent years, railway infrastructures and systems have played a significant role as a highly
efficient transportation mode to meet the growing demand in transporting both cargo and …

Polymer optical fiber (POF) level sensors have a lot of potential in liquid level sensing
because of their inherent safety, chemical corrosion resistance, anti-electromagnetic …

The flat endface of an optical fiber tip is an emerging light-coupled microscopic platform that
combines fiber optics with planar micro-and nanotechnologies. Since different materials and …