Tong-Yi Zhang and Wei Zhao 2008 EPL 82 67001 doi:10.1209/0295-5075/82/67001
Tong-Yi Zhang and Wei Zhao
Show affiliationsThe magnetoexcitonic optical absorption of a GaAs bulk semiconductor driven by a terahertz (THz) field is investigated numerically. The method of the solution of the initial-value problem, in combination with the perfect matched layer technique, is used to calculate the optical susceptibility, with Coulomb interaction, Landau quantization, and THz fields involved nonperturbatively. It shows that there appear replicas and sidebands of magnetoexciton of different Landau levels, which greatly enrich the magneto-optical spectrum in the presence of a driving THz field.
71.35.Ji Excitons in magnetic fields; magnetoexcitons
78.20.Ls Magnetooptical effects
71.35.Cc Intrinsic properties of excitons; optical absorption spectra
Issue 6 (June 2008)
Received 11 January 2008, accepted for publication 21 April 2008
Published 29 May 2008
Tong-Yi Zhang and Wei Zhao 2008 EPL 82 67001
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