Type of Thesis
With appropriate filters, high harmonic generation (HHG) can produce X-ray pulses on the attosecond time scale. We formulate a procedure to minimize pulse duration in various energy regimes and predict photoionization rates for a number of noble gases. Bridging the gap between the theory of high harmonic generation and the experimental reality, we seek to support the production of tabletop X-ray sources able to probe electron dynamics in inner shells. This thesis builds on the work of other researchers in the Ultrafast AMO Theory group, including a novel analytic fitting to noble gas potentials, and predictions of the energy spectrum and phases obtained by high harmonic generation. Specifically, computational methods (including Crank-Nicolson) and the single active electron model allow for the solution of the time-dependent Schrödinger equation and calculation of photoionization probabilities, while numerical Fourier transforms enable rapid analysis of filtered HHG spectra.
Reiff, Ran, "Numerical simulation of photoionization of atoms and attosecond laser pulses" (2015). Undergraduate Honors Theses. 792.