Main research field is theoretical quantum electronics and nonlinear
optics, with particular interest in ultrashort electromagnetic
pulses. Recent developments have made it possible to generate laser
pulses as short as a few femtoseconds, which comprise just 3-4 field oscillation.
We investigate even shorter pulses that do not contain any oscillations
- sub-cycle, few- and sub-femtosecond pulses and solitons. Such
pulses would be, in particular, a unique tool for controlling charge motion
in low-dimensional solid-state structures, such as quantum wells, and may
therefore become part of novel ultrafast switches and other communication
devices. We also investigate quantum control of molecular processes
by sub-cycle pulses. The other current research field is high-intensity
laser-matter interaction as a bridge between quantum electronics and nuclear
physics and as an avenue to laser-based sources of gamma-radiation,
neutrons, and positrons for medical and material science applications.