The authors present the first results obtained with their multibeam scanning electron microscope. For the first time, they were able to image 196 array of 14 14 focused beams of a multielectron beam source on a specimen using single beam scanning electron microscope SEM optics. The system consists of an FEI Novanano 200 SEM optics column equipped with a multielectron beam source module. The sou...

we propose a scheme for localizing an atom in a four-level configuration inside a classical standing wave field, conditioned upon the measurement of frequency of a weak probe field. in the classical standing wave field, the interaction between the atom and the field is position dependent due to the rabi-frequency of the driving field. hence, as the absorption frequency of the probe field is mea...

Abstract We review the semiclassical two-step model for strong-field ionization. The describes quantum interference and accounts ionic potential beyond perturbation theory. discuss formulation implementation of this model, its further developments, as well some applications. reviewed applications include holography with photoelectrons, multielectron polarization effects in ionization by an inte...

The stability of multielectron bubbles (MEBs) in liquid helium is investigated using the liquid-drop model for fissioning nuclei. Whereas a critical positive pressure can make the bubble unstable against fissioning, a small negative pressure suffices to introduce a restoring force preventing any small deformation of the bubble to grow. We also find that there exists an energy barrier making MEB...

of a bubble (F is the diele~tric onstant of liquid helium) gives the class~cal *'Coulomb radius" of the bubble (this value is accurate for the bubbles considered ( 5 , 6)). For typical charges Z of 10510' electrons, this yields radii between 10 and 100 pm. The electrons in a bubble are confined to a narrow region of only a fcw Bngstrorns width close to the bubble surface, owing to their mutual ...

Through solution of the multielectron, semirelativistic, time-dependent Schr\"odinger equation, we show that angular streaking produces strongly spin-polarized electrons in a noble gas. The degree spin polarization increases with Keldysh parameter, so streaking---ordinarily applied to investigate tunneling---may be repurposed generate electron bunches. Additionally, explore modifications scheme...

We present a precise measurement of the photoexcited F K alpha satellite intensity's evolution for NaF from [1s2p] double excitation threshold to saturation. A direct comparison between the observed evolution and the x-ray absorption spectrum was successfully made, and the contribution of multielectron transitions to the absorption spectrum was clearly resolved for the first time. A resonance-l...