Controlling resonant enhancement in higher-order harmonic generation

Abstract

We present a method to tune the resonantly enhanced harmonic emission from engineered potentials, which would be experimentally feasible in the purview of the recent advances in atomic and condensed matter physics. The recombination of the electron from the potential dependent excited state to the ground state causes the emission of photons with a specific energy. The energy of the emitted photons can be controlled by appropriately tweaking the potential parameters. The resonant enhancement in high-harmonic generation enables the emission of very intense extreme ultra-violet or soft x-ray radiations. The scaling law of the resonant harmonic emission with the model parameter of the potential is also obtained by numerically solving the time-dependent Schrödinger equation in two dimensions.

arXiv comment6 pages, 4 figures

References in corpus (8)

• Generation of phase-matched circularly-polarized extreme ultraviolet high harmonics for magnetic circular dichroism spectroscopy
• Irregular orbits generate higher harmonics
• Resonant enhancements of high-order harmonic generation
• Solving the Schrödinger eigenvalue problem by the imaginary time propagation technique using splitting methods with complex coefficients
• High-order harmonic generation and Fano resonances
• High-harmonic generation enhanced by dynamical electron correlation
• High-harmonic generation enhanced by laser-induced electron recollision
• Attosecond pulse production using resonantly-enhanced high-order harmonics