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Excitonic Dynamical Franz-Keldysh Effect | | K. B. Nordstrom
; K. Johnsen
; S. J. Allen
; A.-P. Jauho
; B. Birnir
; J. Kono
; T. Noda
; H. Akiyama
; H. Sakaki
; | | Date: |
23 Apr 1998 | | Journal: | Phys. Rev. Lett. Vol. 81, 457 (1998). | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | The Dynamical Franz-Keldysh Effect is exposed by exploring near-bandgap absorption in the presence of intense THz electric fields. It bridges the gap between the DC Franz- Keldysh effect and multi-photon absorption and competes with the THz AC Stark Effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field non-perturbatively via a non-equilibrium Green Functions technique is able to describe the Dynamical Franz-Keldysh Effect in the presence of excitonic absorption. | | Source: | arXiv, cond-mat/9804254 | | Services: | Forum | Review | PDF | Favorites | |
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