Dynamical Franz-Keldysh effect

Details Dynamical Franz-Keldysh effect Dynamical Franz-Keldysh effect

1995-12-12

arxiv.org/abs/cond-mat/9512092v1

Physics

Condensed Matter

4 pages, REVTEX 3.0, uses epsf, 5 figures attached as Z-compressed .tar file

Scientific paper

10.1103/PhysRevLett.76.4576

We introduce and analyze the properties of dynamical Franz-Keldysh effect, i.e. the change of density-of-states, or absorption spectra, of semiconductors under the influence of {\it time-dependent} electric fields. In the case of a harmonic time-dependence, we predict the occurence of significant fine structure, both below and above the zero-field band-gap, which should be experimentally observable.

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