Among the many works of Arthur Ashkin, many have been devoted to optical tweezers,
optical levitation and optical manipulation of macroscopic particles (“macroscopic” being …

Relying on the time averaged Poynting vector expressed in terms of beam shape
coefficients, dark and superdark theorems are discussed generalizing a previously …

The angular spectrum representation of the vector Bessel-Gauss beam is used for
discussing the connection between the angular spectrum decomposition (ASD) method and …

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

In T-matrix methods (generalized Lorenz–Mie theories or extended boundary condition
method), beam shape coefficients encoding the shape of the illuminating structured beam …

Localized approximation procedures are efficient ways to evaluate beam shape coefficients
of laser beams, and are particularly useful when other methods are ineffective or inefficient …

The radial quadrature method is proposed recently for evaluating the beam shape
coefficients (BSCs) of shaped beams, in which the BSCs are expressed in terms of integrals …

When dealing with T-matrix methods for structured beams, eg Generalized Lorenz–Mie
Theories (GLMTs) or Extended Boundary Condition Method (EBCM), the description of the …

In the framework of a series of papers devoted to warnings concerning the evaluation of
beam shape coefficients (BSCs) of electromagnetic beams by using a localized …

EM Gaussian beams are the most celebrated and used kind of laser beams. Their
description beyond paraxial regimes has a long and venerable history, culminating may be …