Dynamical Franz-Keldysh effect of an electron gas in high magnetic fields and intense laser fields

Authors
Citation
W. Xu et C. Zhang, Dynamical Franz-Keldysh effect of an electron gas in high magnetic fields and intense laser fields, PHYSICA B, 298(1-4), 2001, pp. 339-343
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
0921-4526 → ACNP
Volume
298
Issue
1-4
Year of publication
2001
Pages
339 - 343
Database
ISI
SICI code
0921-4526(200104)298:1-4<339:DFEOAE>2.0.ZU;2-4
Abstract
When an electron gas is subjected simultaneously to quantizing magnetic fie lds and intense laser fields in Faraday geometry, the electron density of s tates and the fundamental absorption edge will be shifted by an energy E-em = (eF(0))(2)/[(4m*(w(2) - w(c)(2))], where w and F-0 are, respectively, th e frequency and the electric field strength of the laser field and w, is th e cyclotron frequency. This is known as dynamical Franz-Keldysh effect (DFK E). In this paper, we study theoretically the DFKE for a semiconductor-base d electron gas system in the presence of quantizing magnetic fields and of intense terahertz (THz) laser fields. (C) 2001 Elsevier Science B.V. All ri ghts reserved.