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|Title:||Relativistic nondipole effects in strong-field atomic ionization at moderate intensities|
|Citation:||Physical review letters, 2019; 123(9):093201-1-093201-6|
|Publisher:||American Physical Society|
|Nida Haram, Igor Ivanov, Han Xu, Kyung Taec Kim, A. Atia-tul-Noor, U. Satya Sainadh, R.D. Glover, D. Chetty, I.V. Litvinyuk, and R.T. Sang|
|Abstract:||We present a detailed experimental and theoretical study on the relativistic nondipole effects in strong-field atomic ionization by near-infrared linearly polarized few-cycle laser pulses in the intensity range of 10¹⁴–10¹⁵ W/cm². We record high-resolution photoelectron momentum distributions of argon using a reaction microscope and compare our measurements with a truly ab initio fully relativistic 3D model based on the time-dependent Dirac equation. We observe counterintuitive peak shifts of the transverse electron momentum distribution in the direction opposite to that of laser propagation as a function of laser intensity and demonstrate an excellent agreement between the experimental results and theoretical predictions.|
|Rights:||© 2019 American Physical Society|
|Appears in Collections:||Physics publications|
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