Quasienergy Spectroscopy of Excitons
Abstract
We theoretically study nonlinear optics of excitons under intense THz irradiation. In particular, the linear near-infrared absorption and resonantly enhanced nonlinear sideband generation are described. We predict a rich structure in the spectra which can be interpreted in terms of the quasienergy spectrum of the exciton, via a remarkably transparent expression for the susceptibility, and show that the effects of strongly avoided quasienergy crossings manifest themselves directly, both in the absorption and transmitted sidebands.
- Publication:
-
Physical Review Letters
- Pub Date:
- August 1999
- DOI:
- 10.1103/PhysRevLett.83.1207
- arXiv:
- arXiv:cond-mat/9903200
- Bibcode:
- 1999PhRvL..83.1207J
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 4 pages RevTex, 3 eps figs included, as published