This paper reviews the requirements and current status of cathodes for accelerator
applications, and proposes a research and development plan for advancing cathode …

Surface plasmons, the collective oscillation of electrons, enable the manipulation of optical
fields with unprecedented spatial and time resolutions. They are the workhorse of a large set …

We demonstrate the ultrafast generation of electrons from tailored metallic nanoparticles and
unravel the role of plasmonic field enhancement in this process by comparing resonant and …

Nonlinear photoelectron emission from metallic nanotips is explored in the strong-field
regime. The passage between the multiphoton and the optical field emission regimes is …

The problem of highly nonlinear photoemission from a metal surface is considered using
analytical and numerical approaches. Descriptions are found which cover both the weak …

We report a strong, laser-field induced modification of the propagation direction of ultrashort
electron pulses emitted from nanometer-sized gold tapers. Angle-resolved kinetic energy …

We present a theoretical and experimental study of a plasmonic nanoelectrode architecture
that is able to inject bunches of hot electrons into an aqueous environment. In this approach …

We present experimental evidence of the generation of few-cycle propagating surface
plasmon polariton wavepackets. These ultrashort plasmonic pulses comprised of only 2-3 …

We review studies of superintense laser interactions with solid targets where the generation
of propagating surface plasmons (or surface waves) plays a key role. These studies include …

A stronger electric field in metal nanostructures can be realized by exciting nanoparticle
plasmonic resonances to enhance hot electron generation. One can alter the nanoparticle …