High-order harmonic generation from confined Rydberg atoms
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CitationOrazymbetov, K., Bleda, E.A., Altun, Z. (2015). High-order harmonic generation from confined Rydberg atoms. XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015). Toledo, Spain: Journal of Physics.
We report results from our simulations of High Harmonic Generation (HHG) from a confined atom in a Rydberg state. We find that for the n = 2 excited state of H the cut-off of the harmonic spectrum is substantially extended compared to that for a free atom at the expense of the harmonic yield. This effect is dependent on the radius of the confining shell for a given n. We also observe that the confined spectrum exhibits cusps similar to those seen in the HHG spectra from ground state atoms in the presence of Cooper minima.