Issue 6 (2014)

Optical torque from enhanced scattering by multipolar plasmonic resonance

Optical torque from enhanced scattering by multipolar plasmonic resonance

We present a theoretical study of the optical angular momentum transfer from a circularly polarized plane wave to thin metal nanoparticles of different rotational symmetries. While absorption has been regarded as the predominant mechanism of torque …

Trapping of resonant metallic nanoparticles with engineered vectorial optical field

Trapping of resonant metallic nanoparticles with engineered vectorial optical field

Optical trapping and manipulation using focused laser beams has emerged as a powerful tool in the biological and physical sciences. However, scaling this technique to metallic nanoparticles remains challenging due to the strong scattering force and …

Energy-saving quality road lighting with colloidal quantum dot nanophosphors

Energy-saving quality road lighting with colloidal quantum dot nanophosphors

Here the first photometric study of road-lighting white light-emitting diodes (WLEDs) integrated with semiconductor colloidal quantum dots (QDs) is reported enabling higher luminance than conventional light sources, specifically in mesopic vision …

Enhanced Raman scattering in graphene by plasmonic resonant Stokes emission

Enhanced Raman scattering in graphene by plasmonic resonant Stokes emission

Exploiting surface plasmon polaritons to enhance interactions between graphene and light has recently attracted much interest. In particular, nonlinear optical processes in graphene can be dramatically enhanced and controlled by plasmonic …

SERS-based detection of biomolecules

SERS-based detection of biomolecules

In order to detect biomolecules, different approaches using for instance biological, spectroscopic or imaging techniques are established. Due to the broad variety of these methods, this review is focused on surface enhanced Raman spectroscopy (SERS) …

Modeling light-sound interaction in nanoscale cavities and waveguides

Modeling light-sound interaction in nanoscale cavities and waveguides

The interaction of light and sound waves at the micro and nanoscale has attracted considerable interest in recent years. The main reason is that this interaction is responsible for a wide variety of intriguing physical phenomena, ranging from the …