Optimal control of photoelectron emission by realistic waveforms
arXiv:1607.03079 · doi:10.1080/09500340.2017.1317857
Abstract
Recent experimental techniques in multicolor waveform synthesis allow the temporal shaping of strong femtosecond laser pulses with applications in the control of quantum mechanical processes in atoms, molecules, and nanostructures. Prediction of the shapes of the optimal waveforms can be done computationally using quantum optimal control theory (QOCT). In this work we demonstrate the control of above-threshold photoemission of one-dimensional hydrogen model with pulses feasible for experimental waveform synthesis.By mixing different spectral channels and thus lowering the intensity requirements for individual channels, the resulting optimal pulses can extend the cutoff energies by at least up to 50\% and bring up the electron yield by several orders of magnitude. Insights into the electron dynamics for optimized photoelectron emission are obtained with a semiclassical two-step model.
References in corpus (10)
- Training Schrödinger's cat: quantum optimal control
- Attosecond physics at the nanoscale
- Imaging an aligned polyatomic molecule with laser-induced electron diffraction
- Dressing the chopped-random-basis optimization: a bandwidth-limited access to the trap-free landscape
- Influence of orbital symmetry on diffraction imaging with rescattering electron wave packets
- High-order harmonic generation from Rydberg atoms driven by plasmonic-enhanced laser fields
- Quantum optimal control of photoelectron spectra and angular distributions
- Optimal control of high-harmonic generation by intense few-cycle pulses
- Experimentally Attainable Optimal Pulse Shapes Obtained with the Aid of Genetic Algorithms
- External constraints on optimal control strategies in molecular orientation and photofragmentation: Role of zero-area fields