In the last two decades, plasmon resonance in gold nanoparticles (Au NPs) has been the
subject of intense research efforts. Plasmon physics is intriguing and its precise modelling …

Optical tweezers, tools based on strongly focused light, enable optical trapping,
manipulation, and characterisation of a wide range of microscopic and nanoscopic …

Small composite objects, known as Janus particles, drive sustained scientific interest
primarily targeted at biomedical applications, where such objects act as micro-or nanoscale …

Despite increasing demand in the manipulation of nanoscale objects for next generation
biological and industrial processes, there is a lack of methods for reliable separation …

Since the time of their introduction, optical tweezers (OTs) have grown to be a powerful tool
in the hands of biologists. OTs use highly focused laser light to guide, manipulate, or sort …

T-matrix methods for electromagnetic structured beams mainly encompass Generalized
Lorenz-Mie Theories (GLMTs) which form a set of analytical approaches dealing with the …

Computational modelling has made many useful contributions to the field of optical
tweezers. One aspect in which it can be applied is the simulation of the dynamics of particles …

The selective ultra-sensitive detection of a very low concentration of analyte in a liquid
environment using surface-enhanced Raman spectroscopy (SERS) is a challenging task …

We measure, by photonic torque microscopy, the nonconservative rotational motion arising
from the transverse components of the radiation pressure on optically trapped, ultrathin …

We introduce what we believe to be a new family of abruptly autofocusing waves named
autofocusing Bessel beams (ABBs). Since the beams only strongly influence the area near …