Over the last two decades, the capabilities of metasurfaces in light modulation with
subwavelength thickness have been proven, and metasurfaces are expected to miniaturize …

In the past years, there has been a growing interest in innovative applications of radially
polarized laser beams. Among them, the particular field of laser-driven electron acceleration …

Recently many ideas have been proposed for the use of a longitudinal field for particle
acceleration, fluorescent imaging, second-harmonic generation and Raman spectroscopy. A …

In order to investigate ponderomotive force in the relativistic regime, the interaction of
ultraintense laser pulses with free electrons in vacuum is studied both theoretically and …

An annular pupil, which can be used to produce a Bessel beam, when combined with
radially polarized illumination promises improvements in microscope resolution, increased …

Accelerating particles to relativistic energies over very short distances using lasers has been
a long-standing goal in physics. Among the various schemes proposed for electrons …

A needle of strong longitudinally polarized field with homogeneous intensity along the
optical axis, long depth of focus, and subdiffraction beam size can be generated by focusing …

We present a relativistic single particle simulation of vacuum acceleration of an electron by a
high-intensity radially polarized laser beam. The inherent complete symmetry of radially …

Longitudinal optical field modulation is of critical importance in a wide range of applications,
including optical imaging, spectroscopy, and optical manipulation. However, it remains a …

When a laser is focused it develops a longitudinal component. This could be used to
develop a laser particle accelerator. A lens waveguide array is discussed, and it is shown …