Infrared spectroscopy in the 3–20 μm spectral window has evolved from a routine laboratory
technique into a state-of-the-art spectroscopy and sensing tool by benefitting from recent …

Nowadays, optical devices and circuits are becoming fundamental components in several
application fields such as medicine, biotechnology, automotive, aerospace, food quality …

An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed
and experimentally demonstrated. In this design, light from a single-mode fiber can be butt …

In this paper an ultra high sensitivity chemical photonic sensor is proposed, employing a
Mach–Zehnder interferometer (MZI)-enhanced Vernier effect. The proposed sensor is …

This paper proposes a hybrid-waveguide ring resonator for on-chip biochemical sensing.
Consisting of a low-loss strip-waveguide and a highly sensitive slot-waveguide integrated in …

Recently, the Vernier effect has been proved to be very efficient for significantly improving
the sensitivity and the limit of detection (LOD) of chemical, biochemical and gas photonic …

A chip-level silicon rib horizontal double-slot waveguide geometry has been proposed and
designed for trace gas sensing in mid-IR regime through the evanescent field absorption …

We report a compact lab-on-chip design of a Mach-Zehnder interferometer (MZI)
incorporating a novel metal strip loaded horizontal slot hybrid plasmonic waveguide …

Nowadays, photonic sensors represent an efficient and intriguing solution for advanced
chemical and biochemical sensing in liquid and gas. In this article, a detailed investigation of …

Vertical slot waveguide micro-ring resonators in silicon photonics have already been
demonstrated in previous works and applied to several schemes, including sensing and …