Nanoparticles of noble metals belong to the most extensively studied colloidal systems in
the field of nanoscience and nanotechnology. Due to continuing progress in the synthesis of …

We describe recent studies on photothermal effects using colloidal nanoparticles. Metal
nanoparticles efficiently generate heat in the presence of electromagnetic radiation. This …

A broad visible and infrared photoluminescence continuum is detected from surface-
plasmon-enhanced transitions in gold nanostructures. We find that the ratio of generated …

Temperature-dependent surface-enhanced Raman scattering (SERS) is used to investigate
the photoluminescence and background continuum always present in SERS but whose …

We demonstrate, experimentally and theoretically, that the photon emission from gold
nanorods can be viewed as a Purcell effect enhanced radiative recombination of hot …

Light-exposure-mediated higher temperatures that markedly accelerate the degradation of
indocyanine green (ICG) in aqueous solutions by thermal decomposition have been a …

Light emission at the particle plasmon frequency is observed in optically excited spherical
gold nanoparticles. We find a photoluminescence efficiency of 10− 6, which is essentially …

Since the first report on the far-field optical detection of single metal nanoparticles in the late
1990s, the field has rapidly developed and new methods and concepts have been …

The mechanism by which light is emitted from plasmonic metals such as gold and silver has
been contentious, particularly at photon energies below direct interband transitions. Using …

We investigated the two-photon-induced photoluminescence properties of single gold
nanorods by scanning near-field spectroscopy. The process was found to be initiated by a …