Superradiance of an Extended Resonant Medium Excited by Half-Cycle Attosecond Pulses

Electromagnetic bubble generation by half-cycle pulses.

Electromagnetic (EM) bubbles (EMB's), unipolar, super-short, and intense nonoscillating solitary pulses of EM radiation, can be generated in a gas of nonlinear atoms by available half-cycle pulses (HCP's). We investigate how EMB's characteristics (amplitude, length, formation distance, and total number) are controlled by the amplitude and length of originating HCP's. We also predict shocklike w...

Probing quantum states of Rydberg electrons by half-cycle pulses

Recently performed experiments 1 have demonstrated that half-cycle pulses (HCPs), i.e. unimodular electromagnetic pulses, are a useful new spectroscopic tool which is particularly well suited for investigating the dynamics of weakly bound Rydberg electrons. Typically their pulse durations range from the subpicosecond to the nanosecond regime and these pulses have already been produced with elec...

Dynamics of diamagnetic Zeeman states ionized by half-cycle pulses

Ionization of oriented elliptic Rydberg states by half-cycle pulses

Recently sources of subpicosecond, unipolar ‘‘halfcycle’’ electromagnetic field pulses have been developed and employed to study the ionization of Rydberg atoms. These half-cycle pulses ~HCP! were used first to study the ionization of Rydberg atoms with well-defined angular momentum quantum numbers @1#. More recently HCP have been used also to study the ionization of extreme parabolic states or...

Generation of isolated ultra-short attosecond pulses by coherent control of the population of excited states