Infrared spectroscopy is a powerful tool widely used in research and industry for a label-free
and unambiguous identification of molecular species. Inconveniently, its application to …

Recent years have seen a rapid expansion of research into nanophotonics based on
surface plasmon–polaritons. These electromagnetic waves propagate along metal …

In recent years, we have seen a rapid progress in the field of graphene plasmonics,
motivated by graphene's unique electrical and optical properties, tunability, long-lived …

Optical antennas are an emerging concept in physical optics. Similar to radiowave and
microwave antennas, their purpose is to convert the energy of free propagating radiation to …

Symmetry-breaking introduced by an adjacent semi-infinite dielectric can introduce coupling
and hybridization of the plasmon modes of a metallic nanostructure. This effect is particularly …

In antenna theory, antenna parameters are directly related to the wavelength λ of incident
radiation, but this scaling fails at optical frequencies where metals behave as strongly …

A novel resonant mechanism involving the interference of a broadband plasmon with the
narrowband vibration from molecules is presented. With the use of this concept, we …

Here, we report a new nanoantenna for surface-enhanced infrared absorption (SEIRA)
detection, consisting of a fan-shaped Au structure positioned at a well-specified distance …

Nanoshell arrays have recently been found to possess ideal properties as a substrate for
combining surface enhanced raman scattering (SERS) and surface enhanced infrared …

We demonstrate that colloidal Cu2–x Se nanocrystals exhibit a well-defined infrared
absorption band due to the excitation of positive charge carrier oscillations (ie, a valence …