Citation
González Fernández, Agustín and Velarde Mayol, Pedro
(2016).
Quantum interference of high-order harmonics from mixed gases.
"Physical review A", v. 94
(n. 2);
pp..
ISSN 2469-9926.
https://doi.org/10.1103/PhysRevA.94.023804.
Abstract
We present a theoretical study about the interference of the harmonics generated by a mixture of two gases, He-Ne. Our model is based on the electron quantum paths, a discrete number of electron trajectories, and continuum-bound transitions. A laser with intensity around 1014W/cm2 that interacts with a mixture of gases, He-Ne, produces an interference that is destructive at the low-order harmonics and oscillates between constructive and destructive near to cutoff. This destructive interference at high-order harmonics may be used to explore other transitions, which are currently hidden. At low-order harmonic frequencies, our numerical results are in very good agreement with experimental data. At higher-order harmonics, where there are no experimental data, comparison is with a Schrödinger solver.