Miguel Ángel Porras from the Polytechnic University of Madrid will give the seminar titled “Theoretical advances in structured light with longitudinal and transverse orbital angular momentum” on November 29 at 1:00 p.m.
The seminar will take place in classroom IV of the Trilingual Building at the University of Salamanca.
Abstract: The control of ultrafast and strong field processes using structured light with orbital angular momentum (OAM) requires the most detailed knowledge of the physical properties of these light waves, and in particular, the amount of OAM carried by them and their propagation dynamics. While experiments of high harmonic and attosecond pulse generation with longitudinal OAM are made routinely in diverse experimental configurations, it is not yet completely clear the limits of the amount of OAM that the driving pulses can carry. Also, numerical studies of second and higher order harmonic generation using pulses with transverse OAM are being conducted, and experiments are planned, but at present there is a lack of knowledge about their propagation properties, and a hot debate on the amount of transverse OAM they carry, and hence transfer to the harmonics. In this talk recent theoretical developments aimed at clarifying these issues will be exposed.
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