Significant advancements in waveguide technology in the mid-infrared (MIR) regime during
recent decades have assisted in establishing MIR spectroscopic and sensing technologies …

This Feature highlights recent advances on mid-infrared thin-film waveguide technology and
on-chip photonics facilitating next-generation label-free chem/bio sensor and assay …

We report transmission measurements of germanium on silicon waveguides in the 7.5–8.5
μm wavelength range, with a minimum propagation loss of 2.5 dB/cm at 7.575 μm. However …

Mid-infrared (MIR) spectroscopy is a powerful tool for characterising the vibrations of
molecular bonds and is therefore ideal for label-free detection of chemical species. Recent …

Zinc selenide (ZnSe) is a promising mid-infrared waveguide material with a high refractive
index and wide transparency. Optical quality ZnSe thin films were deposited on silicon …

Protein sensing in biological fluids provides important information to diagnose many
clinically relevant diseases. Mid-infrared (MIR) absorption spectroscopy of bovine serum …

We demonstrate the integration of paper fluidics with mid-infrared (MIR) chalcogenide
waveguides to introduce liquid samples to the waveguide evanescent field for analysis …

Specific proteins and their aggregates form toxic amyloid plaques and neurofibrillary tangles
in the brains of people suffering from neurodegenerative diseases such as Alzheimer's and …

A single‐step ductile dicing process capable of manufacturing optical quality facets in lithium
niobate (LiNbO3) ridge waveguides with an average surface roughness of 0.29 nm is …

Chalcogenide glass (ChG) thin films have a wide range of applications in planar photonics
that rely on the stability of their optical properties. However, most methods do not provide …