74 citations · 435 across the 21 of their papers we have counts for
21 papers
Strong field ionisation of Argon: Electron momentum spectra and nondipole effects
Nida Haram, Han Xu, Igor Ivanov +3
We investigate the influence of relativistic nondipole effects on the photoelectron spectra of argon, particularly in the low kinetic energy region (0 eV - 5 eV). In our experiment…
Effect of the finite speed of light in ionization of extended systems
I. A. Ivanov, Anatoli S. Kheifets, Kyung Taec Kim
We study propagation effects due to the finite speed of light in ionization of extended systems. We present a general quantitative theory of these effects and show under which cond…
Delay time and Non-Adiabatic Calibration of the Attoclock. Multiphoton process versus tunneling in strong field interaction
Ossama Kullie, Igor Ivanov
The measurement of the tunneling time in attosecond experiments, termed attoclock, triggered a hot debate about the tunneling time, the role of time in quantum mechanics, where the…
Relativistic non-dipole effects in strong-field atomic ionization at moderate intensities
Nida Haram, Igor Ivanov, Han Xu +7
We present a detailed experimental and theoretical study on the relativistic non-dipole effects in strong-field atomic ionisation by near-infrared linearly-polarised few-cycle lase…
Instantaneous ionization rate as a functional derivative
I. A. Ivanov, C. Hofmann, L. Ortmann +3
We describe an approach defining instantaneous ionization rate (IIR) as a functional derivative of the total ionization probability. The definition is based on physical quantities…
Attosecond angular streaking and tunnelling time in atomic hydrogen
U. Satya Sainadh, Han Xu, Xiaoshan Wang +9
Tunnelling, one of the key features of quantum mechanics, ignited an ongoing debate about the value, meaning and interpretation of 'tunnelling time'. Until recently the debate was…