Metamaterials have attracted a great deal of attention due to their intriguing properties, as
well as the large potential applications for designing functional devices. In this paper, we …

Grating Coupled Interferometry (GCI) using high quality waveguides with two incoupling and
one outcoupling grating areas is introduced to increase and precisely control the sensing …

We review optical label-free biosensing platforms based on planar optical waveguides with
their operation principles and performance characteristics. As the building blocks of …

A four-layer waveguide structure comprising a dielectric substrate, a metal layer, a left-
handed material (LHM) as a guiding layer, and a cladding is investigated as a metal-clad …

A four-layer metal-clad structure was considered as an optical sensor for refractometry
applications. The structure had a negative index material (NIM) as a core layer. The structure …

Transverse magnetic (TM) waves in a four-layer slab waveguide structure are studied for
optical sensing applications. The structure consists of a semi-infinite substrate, a thin metal …

The present paper deals with three-layer planar waveguide optical sensor. Different from the
conventional slab waveguide sensors in which the effective refractive index of the …

The present paper deals with the theoretical modeling of symmetrical multilayer planar
waveguide structure. One of the layers is considered as a negative refractive index material …

Composite thin films OWG sensors show higher sensitivity than single film-based OWG
sensors, making them particularly useful in the detection of trace gases. In this work, we …

We propose theoretically two optical sensor structures based on Fabry–Perot resonator and
fringes of equal thickness structure. Different from the conventional slab waveguide sensors …