Phys. Rev. B 49, 13744–13749 (1994)Self-consistent Floquet states for periodically driven quantum wellsReceived 20 January 1994; published in the issue dated 15 May 1994 We have developed a nonperturbative method to compute the dynamics of electrons in quantum wells driven by oscillating electric fields. Floquet theory enables us to compute, in the local-density approximation, solutions of the Schrödinger equation for zero temperature which are self-consistent and for which the density is periodic in time. The method is demonstrated by computing harmonic generation from a tilted square well, which agrees with perturbation theory, and second-harmonic emission from an Al0.3Ga0.7As heterojunction, which agrees with recent experiments of Bewley et al. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.49.13744
DOI:
10.1103/PhysRevB.49.13744
PACS:
02.60.Cb, 73.20.Dx
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