Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS)
have opened a variety of exciting research fields. However, although a vast number of …

Surface-enhanced Raman spectroscopy (SERS) and related spectroscopies are powered
primarily by the concentration of the electromagnetic (EM) fields associated with light in or …

Since 2000, there has been an explosion of activity in the field of plasmon-enhanced Raman
spectroscopy (PERS), including surface-enhanced Raman spectroscopy (SERS), tip …

Driven by applications in chemical sensing, biological imaging and material
characterisation, Raman spectroscopies are attracting growing interest from a variety of …

Recent developments have greatly improved the sensitivity of optical sensors based on
metal nanoparticle arrays and single nanoparticles. We introduce the localized surface …

Core–shell nanoparticles are at the leading edge of the hot research topics and offer a wide
range of applications in optics, biomedicine, environmental science, materials, catalysis …

The birth of terahertz imaging approximately coincides with the birth of the journal Optics
Express. The 20^ th anniversary of the journal is therefore an opportune moment to consider …

Atomic force microscopy-based infrared spectroscopy (AFM-IR) is a rapidly emerging
technique that provides chemical analysis and compositional map** with spatial …

Visualizing individual molecules with chemical recognition is a longstanding target in
catalysis, molecular nanotechnology and biotechnology. Molecular vibrations provide a …

Surface-enhanced Raman scattering (SERS) is a powerful spectroscopy technique that can
provide non-destructive and ultra-sensitive characterization down to single molecular level …